CN106034331A - Method and system for balancing network data traffic - Google Patents

Abstract

The invention provides a network data flow balancing method and system. The method comprises that a shunting evaluation result of a network area to be shunted is obtained; and according to the shunting evaluation result, an object shunting network area capable of shunting within a preset range surrounding the network area to be shunted is determined, a shunting strategy is obtained, flows of the network area to be shunted are shunted to the object shunting network area according to the shunting strategy, and otherwise, the flows of the network area to be shunted are shunted to the object shunting network area via a newly established station. The method can be used to carry out shunting on the high flow or high load area in the present network, the area to be shunted can be positioned, the object shunting area can be determined, the load of the area to be shunted can be reduced, and the bearing efficiency of the object shunting area is improved; and via flow balancing among networks and cooperation among four networks, the network quality is improved, the network operation cost is reduced, resource and quality of the present network are ensured, and user requirements are met.

Description

Method and system for balancing network data traffic

technical field

The invention relates to the technical field of communication and wireless data, in particular to a method and system for equalizing network data flow.

Background technique

At present, in the mobile communication network, there are GSM (Global System for Mobile Communications Global System for Mobile Communications), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), WLAN (Wireless Local Area Network, wireless local area network) And LTE (Long Term Evolution, long-term evolution) multiple networks. With the rapid development of mobile data services and the gradual increase in business volume, the data traffic of each network is unbalanced due to factors such as the development of each network and the different service carrying capacity. In particular, the GSM network and TD-SCDMA network have high loads in some areas, seriously affecting network quality and user experience.

The current data flow balancing strategy mainly considers the distribution of high-load GSM network to TD-SCDMA and WLAN networks. The main offload methods adopted include new sites, interoperability parameter adjustment between GSM and TD-SCDMA, TD-SCDMA capacity expansion, and offload according to the network type and number of terminals supported by the terminal.

On the other hand, LTE network has been commercialized and is under large-scale construction. LTE technology can bring higher transmission rate, higher communication quality, and better user perception. Therefore, the LTE network will become the best offloading option for high-load GSM and TD-SCDMA. However, the current large-scale construction of LTE mainly considers the planning and construction goals of deep coverage and wide coverage, and does not consider traffic distribution.

To sum up, there is indeed an imbalance in the traffic among the various networks at present, and some networks have high loads and need to be diverted urgently. However, the current diversion (traffic balance) strategy and diversion (traffic balance) means have the following deficiencies:

1. The current offloading is not systematic, and it is impossible to evaluate the necessity of offloading from the perspective of the overall network and locate the main problems of offloading; 2. At present, the network mainly considers the offloading from the high-load GSM network to TD-SCDMA and WLAN networks, and does not consider GSM and WLAN networks for the time being. The distribution of TD-SCDMA to LTE network; 3. At present, the site selection and construction of LTE mainly consider the depth coverage and wide coverage, and the distribution factor is not considered for the time being; 4. At present, the interoperability parameter adjustment of GSM and TD-SCDMA is mainly considered. The adjustment of interoperability parameters between GSM, TD-SCDMA and LTE mainly considers ensuring the normal operation of the network, and has not yet considered shunt factors; 5. At present, LTE user promotion and service promotion are mainly based on market and commercial factors, and have not been considered yet Offload factor; 6. At present, the expansion evaluation of TD-SCDMA is mainly considered, and the expansion evaluation of LTE is not considered; 7. In the prior art, the offload network is determined according to the network type supported by the terminal and terminal data and other information to perform offload. The disadvantage is that it cannot be distributed to the network type that the terminal cannot support, and it can only be distributed according to the network type and the number of terminals supported by the terminal, which cannot reflect the actual network and terminal data traffic flow and resource occupation, and sometimes leads to distribution unreasonable.

Contents of the invention

The purpose of the present invention is to provide a method and system for equalizing network data traffic, which solves the current problem of unreasonable distribution, provides guidance for network traffic balance from the perspective of the overall network, expands the distribution scheme, and improves network quality and users. experience.

In order to achieve the above purpose, an embodiment of the present invention provides a method for balancing network data traffic, including:

Obtain the offload evaluation result of the network area to be offloaded;

Judging according to the distribution evaluation result that if there is a target distribution network area that can be distributed within a preset range around the network area to be distributed, obtain a distribution strategy, and distribute the traffic of the network area to be distributed to the target distribution according to the distribution strategy network area, otherwise, the traffic of the network area to be offloaded is diverted to the target offloaded network area by creating a new site.

Wherein, the step of obtaining the distribution evaluation result of the network area to be distributed includes:

Determine the network area to be distributed;

Obtain the diversion index and/or interoperability parameter index of the network to be diverted;

Obtain the site construction index, bearer index and/or terminal distribution index of the target distribution network;

According to the distribution index and/or interoperability parameter index of the network to be distributed, and the site construction index, bearer index and/or terminal distribution index of the target distribution network, the distribution evaluation result of the network area to be distributed is obtained.

Among them, the steps of determining the network area to be distributed include:

Determine the network area to be offloaded according to the occupation of network resources, service flow information, terminal related information, and user or service requirement information.

Among them, the network area to be offloaded is determined to be a 2G outdoor high-traffic cell by the following algorithm:

A cell whose daily average cell traffic is higher than the threshold is a 2G outdoor high-traffic cell; or

Determine the network area to be offloaded as a 2G outdoor high-load cell by the following algorithm:

The cells whose daily average cell traffic is higher than the threshold, uplink PDCH multiplexing during daily average busy hours or downlink PDCH multiplexing during daily average busy hours are higher than the threshold, and whose wireless utilization rate is higher than the threshold during daily average busy hours are 2G outdoor high-load cells; or

The network area to be offloaded is determined to be a 2G indoor high-traffic cell by the following algorithm:

A cell whose daily average cell traffic is higher than the threshold is a 2G indoor high-traffic cell: or

The network to be offloaded is determined to be a 2G indoor high-load cell by the following algorithm:

The cells whose daily average cell traffic is higher than the threshold, uplink PDCH multiplexing during daily average busy hours or downlink PDCH multiplexing during daily average busy hours are higher than the threshold, and whose wireless utilization rate is higher than the threshold during daily average busy hours are 2G indoor high-load cells; or

The network area to be offloaded is determined to be a TD outdoor high-traffic cell by the following algorithm:

A cell whose daily average cell traffic is higher than the threshold is a TD outdoor high-traffic cell; or

The network area to be offloaded is determined to be a TD outdoor high-load cell by the following algorithm:

A cell whose daily average cell traffic is higher than the threshold and whose daily average busy hour cell code resource utilization is higher than the threshold is a TD outdoor high-load cell; or

The network area to be offloaded is determined to be a TD indoor high-traffic cell by the following algorithm:

A cell whose daily average cell traffic is higher than the threshold is a TD indoor high-traffic cell; or

Determine the network area to be offloaded as a TD indoor high-load cell by the following algorithm:

The cells whose daily average cell traffic is higher than the threshold and whose daily average busy hour cell code resource utilization is higher than the threshold are TD indoor high-load cells.

Among them, the traffic distribution index of the 2G network is obtained according to the following formula:

X=1-(α×2G high-traffic cell ratio+β×2G high-load cell ratio);

If the offload index of the 2G network is lower than the first preset threshold, the offload evaluation result of the 2G network is: there is a offload demand;

Among them, X is the distribution index of 2G cells, α and β are constants, the proportion of 2G high-traffic cells is the proportion of 2G high-traffic cells in the 2G cells of the entire network, and the proportion of 2G high-load cells is the proportion of 2G high-load cells in the entire network of 2G cells. proportion of the district.

Wherein, the traffic distribution index of the 3G network is obtained according to the following formula:

Y=1-(γ×3G high-traffic cell ratio+δ×3G high-load cell ratio);

If the offload index of the 3G network is lower than the second preset threshold, the offload evaluation result of the 3G network is: there is a offload demand;

Among them, Y is the distribution index of 3G cells, γ and δ are constants, the proportion of 3G high-traffic cells is the proportion of 3G high-traffic cells in the 3G cells of the entire network, and the proportion of 3G high-load cells is the proportion of 3G high-load cells in the entire network 3G proportion of the district.

Among them, the 2G/3G interoperability parameter index is obtained according to the following formula:

A=(∑Proportion of suitable cells for each type of interoperability parameter configuration)/number of interoperability parameter types;

If the 2G/3G interoperability parameter index is higher than the third preset threshold, the distribution evaluation result is: conform to the configuration suggestion of the preferred 3G network; otherwise, the distribution evaluation result is: the 2G/3G network interoperability parameter configuration needs to be optimized;

Among them, A is the 2G/3G interoperability parameter index; the proportion of cells with appropriate interoperability parameters refers to the proportion of cells whose configuration parameters are within a reasonable range among the formulated interoperability parameters.

Among them, the 2G/3G/4G interoperability parameter index is obtained according to the following formula:

B=(∑Proportion of suitable cells for each type of interoperability parameter configuration)/number of interoperability parameter types;

If the 2G/3G/4G interoperability parameter index is higher than the fourth preset threshold, the distribution evaluation result is: conform to the configuration suggestion of the preferred 4G network; otherwise, the distribution evaluation result is: need to optimize 2G/3G/4G network interoperability parameter configuration;

Among them, B is the 2G/3G/4G interoperability parameter index; the proportion of cells with appropriate interoperability parameter configuration refers to the proportion of cells whose configuration parameters are within a reasonable range among the formulated interoperability parameters.

Among them, the site construction index of the target distribution network TD is obtained according to the following formula:

C=α×GSM high-traffic cell has a ratio of TD stations+β×GSM high-load cell has a ratio of TD stations;

If the site construction index of the target distribution network TD is higher than the fifth preset threshold, the distribution evaluation result is: use TD network distribution; otherwise, use TD station construction to perform distribution;

Among them, C is the site construction index of the target distribution network TD; α and β are constants, and the proportion of GSM high-traffic cells with TD stations is the ratio of GSM high-traffic cells with the same site and coverage TD stations in the entire network of GSM high-traffic cells Proportion; the proportion of GSM high-load cells with TD stations at the same site and coverage is the proportion of GSM high-load cells with TD stations at the same site and coverage in the entire network of GSM high-load cells.

Among them, the site construction index of the target distribution network LTE is obtained according to the following formula:

D=(α×GSM high-traffic cell ratio with LTE stations+β×GSM high-load cell ratio with LTE stations)×k+(γ×TD high-traffic cell ratio with LTE stations+δ×TD high-load cell ratio with LTE The ratio of stations)×(1-k);

If the site construction index of the target offload network LTE is higher than the sixth preset threshold, the offload evaluation result is: use LTE network offload; otherwise, offload through LTE station construction:

Among them, D is the construction index of LTE; α, β, γ, δ, and k are constants; the proportion of GSM high-traffic cells with LTE stations is the GSM high-traffic GSM high-traffic cells with the same site and coverage LTE stations in the entire network Proportion in the cell; the ratio of LTE stations in the GSM high-load cell is the ratio of the GSM high-load cell with the same site and coverage LTE station in the GSM high-load cell in the entire network; the ratio of LTE stations in the TD high-traffic cell It is the proportion of TD high-traffic cells with LTE stations with the same site and coverage in the TD high-traffic cells of the entire network; the proportion of TD high-load cells with LTE stations is the proportion of TD high-load cells with LTE stations with the same site and coverage The proportion of TD high-load cells in the entire network.

Among them, the site construction index of the target distribution network WLAN is obtained according to the following formula:

E=α×GSM high-traffic community has WLAN station ratio+β×GSM high-load community has WLAN station ratio)×k+(γ×TD high-traffic community has WLAN station ratio+δ×TD high-load community has WLAN station The ratio of) × (1-k);

If the site construction index of the target offload network WLAN is higher than the seventh preset threshold, the offload evaluation result is: use WLAN network offload; otherwise, offload through WLAN station building;

Among them, E is the station construction index of WLAN; α, β, γ, δ, and k are constants; the proportion of GSM high-traffic cells with WLAN stations is the proportion of GSM high-traffic cells with the same site address and coverage WLAN stations in the entire network GSM high-traffic Proportion in the community; the proportion of WLAN stations in GSM high-load communities is the proportion of GSM high-load communities with the same site and coverage WLAN stations in the entire network; the proportion of TD high-traffic communities with WLAN stations is the proportion of TD high-traffic cells with WLAN stations with the same site and coverage in the TD high-traffic cells of the entire network; the proportion of TD high-load cells with WLAN stations is the proportion of TD high-load cells with WLAN stations with the same site and coverage The proportion of TD high-load cells in the entire network.

Wherein, the bearer index of the target distribution network 3G network is obtained according to the following formula:

F=Number of cells with high TD code resource busy-idle ratio/Number of TD cells with the same site and coverage of GSM high traffic;

If the bearer index of the 3G network of the target offload network is higher than the eighth preset threshold, the offload evaluation result is that the 3G network bears better; otherwise, the offload evaluation result is that the 3G network is used for offload;

Among them, F is the bearer index of the 3G network of the target distribution network; code resource busy-idle rate=(m×uplink occupied BRU number in busy time+n×downlink occupied BRU number in busy time)/[K×(m×uplink total available BRU number +n×number of all available downlink BRUs)], m and n are the uplink attention factor and downlink attention factor respectively, and K is the ratio of the number of channels that can be carried by the system to the number of available channels in the system.

Among them, the bearer index of the 4G network of the target distribution network is obtained according to the following formula:

G = Number of cells with high LTE wireless resource utilization in the same site and coverage/Number of LTE cells with the same site and coverage in GSM and TD high traffic cells;

If the bearer index of the 4G network of the target offload network is higher than the ninth preset threshold, the offload assessment result is that the 4G network bears better; otherwise, the offload assessment result is that the 4G network offload is used;

Among them, G is the bearer index of the target offload network 4G network; the number of cells with high LTE wireless resource utilization rate in the same site and coverage is the LTE cell with the same site and coverage, and the wireless resource utilization rate is greater than or equal to the preset utilization rate The number of LTE cells with the same site and coverage in GSM and TD high-traffic cells is the number of LTE cells with the same site and coverage in GSM high-traffic cells plus the number of LTE cells with the same site and coverage in TD high-traffic cells Reduce the number of de-overlapped cells.

Wherein, the bearer index of the target distribution network WLAN network is obtained according to the following formula:

H=1-The ratio of idle hotspots of WLAN at the same site and coverage:

If the bearer index of the target offload network WLAN network is higher than the tenth preset threshold, the offload evaluation result is that the WLAN network bears better; otherwise, the offload evaluation result is that the WLAN network is used for offload;

Among them, H is the bearing index of the target distribution network WLAN network; WLAN idle hotspots are WLAN networks whose daily average traffic per node is less than the preset traffic value and the daily average number of users is less than the preset user value.

Wherein, the terminal distribution index of the target distribution network 3G network is obtained according to the following formula:

M = proportion of TD terminals in the entire network × proportion of 3G network used by TD terminals;

If the terminal distribution index of the target distribution network 3G network is higher than the eleventh preset threshold, the distribution evaluation result is that the TD terminal distribution basis is better; otherwise, the distribution evaluation result is that the TD terminal distribution is used;

Among them, M is the terminal distribution index of the target distribution network 3G network; the proportion of TD terminals in the entire network is the number of TD terminals/the number of terminals in the entire network; the proportion of TD terminals using 3G networks is the number of TD terminals in the 3G network/number of TD terminals.

Among them, the terminal distribution index of the target distribution network 4G network is obtained according to the following formula:

N = proportion of LTE terminals in the entire network × proportion of LTE terminals using 4G networks;

If the terminal distribution index of the target distribution network 4G network is higher than the twelfth preset threshold, the distribution evaluation result is that the distribution basis of LTE terminals is better; otherwise, the distribution evaluation result is that LTE terminals are used for distribution;

Among them, N is the terminal distribution index of the target distribution network 4G network; the proportion of LTE terminals in the entire network is the number of LTE terminals/the number of terminals in the entire network; the proportion of LTE terminals using 4G networks is the number of LTE terminals in the 4G network/number of LTE terminals.

Wherein, according to the distribution evaluation result, the step of judging if there is a target distribution network area that can be distributed within a preset range around the network area to be distributed includes:

If the distribution evaluation result indicates that the network to be distributed needs to be distributed, a target distribution network is determined within a preset range around the area of the network to be distributed.

Wherein, the steps of determining that the target distribution network is a 3G network include:

Determine the target offload network as the 3G target offload cell by the following algorithm:

Among the 3G network cells whose cell network type is 3G network and have GSM high-value cells with the same site and coverage, the 3G network cells whose 3G traffic residence ratio is less than or equal to the threshold are 3G target diversion cells;

Among them, the calculation method of traffic residence ratio is as follows:

When the TD cell is GSM with the same site and coverage, the resident ratio of 3G traffic at the same site and the same coverage = the cell traffic of the TD cell in the area of the same site and the same coverage/(the cell traffic of the TD cell + the 2G traffic of the same site and the same coverage cell TD terminal traffic); or

The calculation method of traffic residence ratio is as follows:

When the TD cell satisfies the same site and coverage of GSM, the resident ratio of TD traffic at the same site and the same coverage = the cell traffic of the TD cell in the area of the same site and the same coverage / (the cell traffic of the TD cell + the same site and the same coverage cell traffic of 2G cell).

Wherein, the steps of determining that the target distribution network is a 4G network include:

Determine the target offload network as the 4G target offload cell in the 4G network by the following algorithm:

The network type of the cell is 4G network, and there are LTE network cells with the same site and coverage of GSM or TD (or high-value cells with the same site and coverage of GSM or TD), the proportion of LTE traffic resident is less than or equal to the threshold, and The cell whose LTE radio resource utilization rate is less than the threshold is the target offload cell;

Among them, the calculation method of traffic residence ratio is as follows:

LTE traffic resident ratio = daily average cell traffic of LTE cell/(average daily cell traffic of LTE + LTE terminal traffic of GSM with the same site and same coverage + LTE terminal traffic of TD with same site and same coverage); or

The calculation method of traffic residence ratio is as follows:

The proportion of traffic in an LTE cell = daily average cell traffic in an LTE cell/(daily average LTE traffic + daily average GSM traffic on the same site and coverage + average daily TD traffic on the same site and coverage).

Wherein, for the target distribution cell of the target distribution network, the target distribution cell is determined as the user promotion cell by the following method:

The number of cell terminals is less than or equal to the first value, and the traffic of the cell terminals is less than or equal to the second value.

Wherein, the step of diverting the traffic of the network area to be diverted to the target diverted network region according to the diversion strategy includes:

Distribute the traffic in the network area to be distributed to the target distribution network area for distribution by adjusting the interoperability parameters; and/or

Distribute the traffic in the network area to be distributed to the target distribution network area through user or service promotion.

Wherein, if the network to be offloaded or the target offloaded network can be expanded, then expand the capacity of the network.

Wherein, when the network to be offloaded or the target offloaded network is a 3G network, the 3G cell is evaluated by the following algorithm:

3G cells whose cell code resource utilization rate is greater than the threshold, PS domain RAB congestion rate is greater than the threshold, and the number of days of cell congestion within the statistical time range is greater than the threshold are 3G cells to be expanded;

Among them, the resource utilization rate of the cell code is equal to (the number of BRUs occupied by the uplink + the number of BRUs occupied by the downlink)/(the number of configured uplink BRUs + the number of configured downlink BRUs); the PS domain RAB congestion rate is equal to the PS domain RAB congestion times/RAB establishment the number of requests; or

The 3G cell is evaluated by the following algorithm:

When the code resource busy-idle rate of the mixed carrier frequency of the 3G cell is greater than the threshold or the code resource busy-idle rate of the HSUPA carrier frequency of the 3G cell is greater than the threshold or the code resource busy-idle rate of the HSUPA carrier frequency of the 3G cell is greater than the threshold and the uplink DPCH channel BRU If the bearer efficiency is greater than the threshold, the 3G cell is a 3G cell to be expanded.

Among them, when the network to be offloaded or the target offloaded network is a 4G network, the 4G cell is evaluated by the following algorithm:

During the statistical period, the average number of RRC connected users when the local network is busy is greater than the number of purchased user licenses, and the 4G cell is a 4G cell to be expanded; or

The 4G cell is evaluated by the following algorithm:

During the statistical period, the wireless resource utilization rate of the LTE network is greater than the utilization threshold during busy hours, and the average number of active RRC connected users is greater than the user capacity threshold during busy hours, and the downlink traffic is greater than the downlink traffic threshold when the cell is busy or the uplink traffic is greater than the uplink traffic when the cell is busy Traffic threshold, the 4G cell is a 4G cell to be expanded.

Wherein, if the network to be offloaded or the target offloaded network is a weak coverage, poor quality or interfering cell, the network is optimized.

Among them, the steps to create a new site include:

Create a new 3G site through the following algorithm:

During the statistical period, if the GSM cell is a high-value cell, there is no 3G network with the same site and coverage, the number of TD terminals is greater than or equal to the threshold, and the traffic of TD terminals is greater than or equal to the threshold, a new 3G site is newly built; For TD terminals in high-value communities on the network, the time granularity is days, and the daily average number of TD terminals within the statistical time range; for TD terminal traffic in high-value communities on the 2G network, the time granularity is days, and the daily average TD terminals within the statistical time range The traffic is greater than or equal to the threshold;

Or, use the following algorithm to create a new 3G site:

During the statistical period, if the GSM cell is a high-value cell and there is no 2G network high-value site with the same site and coverage of the 3G network, a new 3G site will be built.

Among them, the steps to create a new site include:

Use the following algorithm to create a new WLAN site:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, there is no WLAN with the same site and coverage, the number of WLAN terminals is greater than or equal to the threshold, and the traffic of WLAN terminals is greater than or equal to the threshold, a new 2G or 3G network high-value site is created. WLAN site; wherein, the number of WLAN terminals is the daily average WLAN terminal quantity residing in the cell within the statistical time range, and the time granularity is days; WLAN terminal traffic=the daily average WLAN terminal service flow of the residential cell within the statistical time range, and the time granularity is sky;

Alternatively, create a new WLAN site using the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, and there is no 2G network or 3G network high-value site with the same site address and coverage of WLAN, a new WLAN site is built.

Among them, the steps to create a new site include:

Create a new 4G site through the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, does not have the same site and same coverage LTE, the number of LTE terminals is greater than or equal to the threshold, and the traffic of LTE terminals is greater than or equal to the threshold, then a new 2G or 3G network high-value site is created. 4G site; if the 2G network cell and the 3G network cell are obtained at the same site, remove the 3G site at the 2G site; where, the number of LTE terminals = the daily average number of LTE terminals residing in the cell within the statistical time range, and the time granularity is day ;LTE terminal flow = the daily average LTE terminal service flow in the residential cell within the statistical time range, and the time granularity is days;

Or create a new 4G site through the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, and there is no 2G network or 3G network high-value site with the same site and LTE coverage, a new 4G site will be built; if the obtained 2G network cell and 3G network cell share the site , remove the 3G site with 2G co-site.

Among them, the mapping relationship between the same site and coverage among 2G network, 3G network, 4G network and WLAN network includes:

For 2G indoors, only the same site is considered for 3G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 2G indoor and 3G indoor are on the same site;

For 2G indoors, only the same site is considered for WLAN hotspots, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 2G indoor and WLAN hotspots are on the same site;

2G outdoor, for 3G outdoor, when the station distance is less than or equal to the common site distance, 2G outdoor and 3G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K1, 2G outdoor Same coverage as 3G outdoor, where K1 is a constant;

2G outdoor, for WLAN hotspots, when the station distance is less than or the same site as the station distance, the 2G outdoor and WLAN hotspots are on the same site; when the station distance is less than or equal to the coverage radius of GSM × K2-WLAN Hotspots are the same as coverage, where K2 is a constant;

For 2G indoors, only the same site is considered for 4G indoors. When the distance between stations is less than or equal to the distance between common sites, 2G indoors and 4G indoors are on the same site;

2G outdoor, for 4G outdoor, when the station distance is less than or equal to the common site station distance, 2G indoor and 4G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K3, 2G outdoor Same coverage for 4G outdoors, where K3 is a constant.

Among them, the mapping relationship between the same site and coverage among 2G network, 3G network, 4G network and WLAN network includes:

For 3G indoors, only the same site is considered for 2G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 3G indoor and 2G indoor are on the same site;

3G outdoor, for 2G outdoor, when the station distance is less than or equal to the common site station distance, the 3G indoor and 2G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K4, 3G indoor Same coverage as 2G outdoor, where K4 is a constant;

For 3G indoors, only the same site is considered for WLAN hotspots, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 3G indoor and WLAN hotspots are on the same site;

3G outdoor, for WLAN hotspots, when the distance between stations is less than or equal to the distance between co-site stations, the 3G outdoor and WLAN hotspots are on the same site; WLAN hotspots have the same coverage, where K5 is a constant;

For 3G indoors, only the same site is considered for 4G indoors, and when the inter-site distance is less than or equal to the co-site inter-site distance, the 3G indoor and 4G indoor are on the same site;

3G outdoor, for 4G outdoor, when the station distance is less than or equal to the common site station distance, the 3G outdoor and 4G outdoor are on the same site; when the station distance is <= (LTE coverage radius + TD coverage radius) × K6, 3G outdoor Same coverage as 4G outdoor, where K6 is a constant.

Among them, the mapping relationship between the same site and coverage among 2G network, 3G network, 4G network and WLAN network includes:

For 4G indoors, only the same site is considered for 3G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 4G indoor and 3G indoor are on the same site;

4G outdoor, for 3G outdoor, when the station distance is less than or equal to the common site distance, the 4G outdoor and 3G outdoor are on the same site; when the station distance is less than or equal to (LTE coverage radius + TD coverage radius) × K7, 4G Outdoor coverage is the same as 3G outdoor coverage, where K7 is a constant.

Among them, the mapping relationship between the same site and coverage among 2G network, 3G network, 4G network and WLAN network includes:

For WLAN hotspots, only the same site is considered for 2G indoors. When the distance between sites is less than or equal to the distance between common sites, WLAN hotspots and 2G indoors are on the same site;

For WLAN hotspots, only the same site is considered for 3G indoors. When the distance between sites is less than or equal to the distance between common sites, WLAN hotspots and 3G indoors are on the same site;

WLAN hotspots, for 2G outdoors, when the distance between stations is less than or equal to the distance between common sites, WLAN hotspots and 2G outdoors have the same site; the distance between stations is less than or equal to GSM coverage radius × K8-WLAN coverage radius, WLAN hotspots and 2G outdoors Same coverage, where K8 is a constant;

WLAN hotspots, for 3G outdoors, when the distance between stations is less than or equal to the distance between common sites, the WLAN hotspots and 3G outdoors have the same site; when the distance between stations is less than or equal to TD coverage radius × K9-WLAN coverage radius, WLAN The outdoor coverage is the same, where K9 is a constant.

Among them, the methods for determining the same site and same coverage cell among 2G network, 3G network, 4G network and WLAN network include:

When there are 3G sites at the same site, regardless of the calculation of the same coverage, a 3G cell with the smallest absolute value of the azimuth difference is selected;

When there is no 3G site with the same site, if there is a 3G cell with the same coverage, select the 3G cell with the same coverage within the range of the station distance; if there is no 3G cell with the same coverage, select the nearest cell within the distance The same direction means the cell with the same coverage; otherwise, there is no 3G cell with the same site and the same coverage.

Among them, the methods for determining the same site and same coverage cell among 2G network, 3G network, 4G network and WLAN network include:

When there are 4G sites at the same site, regardless of the calculation of the same coverage, select a 4G cell with the smallest absolute value of the azimuth difference;

When there is no 4G site with the same site, if there is a 4G cell with the same coverage, select the 4G cell with the same coverage within the range of the station distance; if there is no 4G cell with the same coverage, select the nearest cell within the distance between the stations The same direction means the cell with the same coverage; otherwise, there is no 4G cell with the same site and the same coverage.

The embodiment of the present invention also provides a network data flow balancing system, including:

An acquisition module, configured to acquire an offload evaluation result of a network area to be offloaded;

An offloading module, configured to judge according to the offloading evaluation result that if there is a target offloading network area that can be offloaded within a preset range around the network area to be offloaded, obtain an offloading strategy, and divide the network area to be offloaded according to the offloading strategy The traffic is distributed to the target distribution network area; otherwise, the traffic of the network area to be distributed is distributed to the target distribution network area by creating a new site.

The technical solution of the present invention has at least the following beneficial effects:

In the method and system for equalizing network data traffic provided by the embodiments of the present invention, the network area to be offloaded and the target offloading area are determined based on the offloading evaluation results of the network area to be offloaded, and appropriate offloading means, such as new sites, interoperability parameters Adjustment, user promotion and business promotion, etc., carry out data distribution to achieve the goal of balanced data flow between networks. This method can offload high-traffic or high-load areas in the existing network, not only can locate the area to be offloaded and determine the target offloaded area, but also reduce the load on the offloaded area and improve the carrying efficiency of the target offloaded area; Balanced and four-network coordination improves network quality, reduces network operating costs, ensures existing network resources and quality, and meets user needs.

Description of drawings

Fig. 1 shows the basic step figure of the equalization method of the network data flow of the embodiment of the present invention;

Fig. 2 shows the flow chart of specific steps of the balancing method of network data traffic in the embodiment of the present invention;

Fig. 3 shows the composition structural diagram of the balance system of the network data flow of the embodiment of the present invention;

Fig. 4 shows the schematic flow chart of 2G to LTE offloading in the specific embodiment 1 of the present invention;

Fig. 5 shows the flow schematic diagram of TD to LTE offloading in the specific embodiment 2 of the present invention;

Fig. 6 shows the schematic flow chart of 2G to TD shunting in the specific embodiment 3 of the present invention;

FIG. 7 shows a schematic flow diagram of 2G to WLAN offloading in Embodiment 4 of the present invention;

Fig. 8 is a schematic flow chart showing the flow of traffic distribution from TD to WLAN in Embodiment 5 of the present invention.

detailed description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

The present invention aims at the problem in the prior art that due to the rapid development of mobile data services and the gradual increase in business volume, the data flow of each network is unbalanced, and the load of some networks is relatively high, which seriously affects the network quality and user experience. It provides a network The method and system for equalizing data traffic, determine the network area to be offloaded and the target offloading area based on the offloading assessment results of the network area to be offloaded, and use appropriate offloading means, such as new sites, interoperability parameter adjustments, user promotion and business promotion, etc. Data distribution is carried out to achieve the goal of balancing data traffic between networks. This method can offload high-traffic or high-load areas in the existing network, not only can locate the area to be offloaded and determine the target offloaded area, but also reduce the load on the offloaded area and improve the carrying efficiency of the target offloaded area; Balanced and four-network coordination improves network quality, reduces network operating costs, ensures existing network resources and quality, and meets user needs.

As shown in Figure 1, an embodiment of the present invention provides a method for balancing network data traffic, including:

Step 11, obtaining the distribution evaluation result of the network area to be distributed;

Step 12, judging according to the offloading evaluation result that if there is a target offloading network area within a preset range around the network area to be offloaded, obtain a offloading strategy, and offload the traffic of the network area to be offloaded according to the offloading strategy to the target offload network area, otherwise, the traffic in the network area to be offloaded is offloaded to the target offload network area by creating a new site.

In the above embodiments of the present invention, the offload evaluation results of the network area to be offloaded mainly include coverage evaluation, poor quality evaluation, interference evaluation, and capacity expansion evaluation, and the offload evaluation results of the network area to be offloaded are given by combining the above evaluation results. It should be noted that both the network area to be offloaded and the target network area in the embodiment of the present invention can be evaluated by self-optimization, and the specific evaluation content is the same as that of the network area to be offloaded above, and will not be described again here.

Specifically, in the above-mentioned embodiment of the present invention, step 11 includes:

Step 111, determining the network area to be distributed;

Step 112, obtaining the distribution index and/or the interoperability parameter index of the network to be distributed;

Step 113, obtaining the site construction index, bearer index and/or terminal distribution index of the target distribution network;

Step 114, according to the distribution index and/or the interoperability parameter index of the network to be distributed, and the site construction index, bearer index and/or terminal distribution index of the target distribution network, obtain the distribution evaluation result of the network area to be distributed.

The specific embodiment of the present invention provides a set of network distribution evaluation index system, through which the entire large network (including GSM (2G), TD-SCDMA (3G), LTE (4G), WLAN) can be evaluated as a whole, and The necessity of traffic distribution is given, the problem of traffic distribution is located, and the implementation of the traffic distribution (traffic balance between networks) scheme is guided. In the embodiment of the present invention, only the processing method in the case of 2G or 3G network needs to be offloaded is illustrated. If a network with a higher rate and higher communication quality than 4G is expanded in the future, the network data flow balancing method of the present invention is also applicable. For offloading of 4G network or higher network. The various indexes of the to-be-offloaded network and the target offloaded network listed in step 112 and step 113 are only the specific application of the embodiment of the present invention, and are not used to limit the protection scope of the present invention. Other indexes that can affect network traffic and network quality It is also applicable to the present invention, and examples are not given here.

Further, the network area to be offloaded includes the network to be offloaded and/or the target offloaded network, and the offloading evaluation result of the network area to be offloaded is determined by the offloading index and/or the interoperability parameter index of the network to be offloaded and the site establishment of the offloaded network The index, bearer index and/or terminal offload index are determined comprehensively; specifically, the step 111 of determining the network area to be offloaded includes:

Step 110, according to network resource occupancy, service flow information, terminal related information, and user or service requirement information, determine the network area to be offloaded. Here, a GSM (2G) cell and a TD-SCDMA (3G, TD) cell to be distributed are taken as an example. It should be noted that all TD, TD-SCDMA and 3G networks involved in the embodiments of the present invention refer to the same network; GSM and 2G networks refer to the same network, and LTE and 4G networks refer to the same network; Various thresholds, preset values, and threshold values of , can be set according to network requirements, and will not be described one by one below.

The network area to be offloaded determined in the embodiment of the present invention includes 2G high-value cells and TD high-value cells. High-value cells can represent high-traffic cells or high-load cells through different parameter configurations, and can be divided into different scenarios, such as indoors and outdoors. The following describes the situation that the network areas to be offloaded are 2G outdoor high-value cells, 2G indoor high-value cells, TD outdoor high-value cells, and TD indoor high-value cells; Traffic cell: the cell whose daily average cell traffic is higher than the threshold is a 2G outdoor high-traffic cell; or the network area to be offloaded is determined to be a 2G outdoor high-load cell by Algorithm 2: the daily average cell traffic is higher than the threshold, and the daily average The cells whose usage rate or downlink PDCH multiplexing degree is higher than the threshold and the daily average busy time wireless utilization rate is higher than the threshold are 2G outdoor high-load cells; : The cell whose daily average cell traffic is higher than the threshold is a 2G indoor high-traffic cell: or the network to be offloaded is determined to be a 2G indoor high-load cell by Algorithm 4: the daily average cell traffic is higher than the threshold, the daily average busy-time uplink PDCH multiplexing degree or The cell whose downlink PDCH multiplexing degree is higher than the threshold and the wireless utilization rate is higher than the threshold during the daily average busy hour is a 2G indoor high-load cell; The cell whose cell traffic is higher than the threshold is a TD outdoor high-traffic cell; or the network area to be offloaded is determined to be a TD outdoor high-load cell by Algorithm 6: the daily average cell traffic is higher than the threshold and the average daily busy hour cell code resource utilization is higher than the threshold or use Algorithm 7 to determine that the network area to be offloaded is a TD indoor high-traffic cell: the cell whose daily average cell traffic is higher than the threshold is a TD indoor high-traffic cell; or use Algorithm 8 to determine the network area to be offloaded It is a TD indoor high-load cell: a cell whose daily average cell traffic is higher than the threshold and whose daily average busy hour cell code resource utilization rate is higher than the threshold is a TD indoor high-load cell.

Table 1 Definition of high-value communities

As shown in Table 1, the specific values of the thresholds involved in Algorithms 1-8 are defined according to actual network conditions, and are not limited to a specific value. Specifically, according to the PDCH reuse degree, the PDCH can accurately predict the cell-level capacity occupancy situation, so that corresponding measures can be taken in time to optimize the network and improve user experience.

Further, the method for obtaining the offload index and/or interoperability parameter index of the network to be offloaded in step 112 is as follows, described from the perspectives of the 2G network and the 3G network respectively:

According to the formula 1, the distribution index of the 2G network is obtained:

X=1-(α×2G high-traffic cell ratio+β×2G high-load cell ratio);

If the offload index of the 2G network is lower than the first preset threshold, the offload evaluation result of the 2G network is: there is a offload demand; wherein, X is the offload index of the 2G cell, α and β are constants, and the proportion of the 2G high-traffic cell is the proportion of 2G high-traffic cells in the 2G cells of the entire network, and the proportion of 2G high-load cells is the proportion of 2G high-load cells in the 2G cells of the entire network.

According to the formula 2, the distribution index of the 3G network is obtained:

Y=1-(γ×3G high-traffic cell ratio+δ×3G high-load cell ratio);

If the distribution index of the 3G network is lower than the second preset threshold, the distribution evaluation result of the 3G network is: there is a distribution demand; wherein, Y is the distribution index of the 3G community, γ and δ are constants, and the proportion of the 3G high-traffic community is the proportion of 3G high-traffic cells in the 3G cells of the entire network, and the proportion of 3G high-load cells is the proportion of 3G high-load cells in the 3G cells of the entire network.

Obtain the 2G/3G interoperability parameter index according to formula 3:

A=(∑Proportion of suitable cells for each type of interoperability parameter configuration)/number of interoperability parameter types;

If the 2G/3G interoperability parameter index is higher than the third preset threshold, the distribution evaluation result is: conform to the configuration suggestion of the preferred 3G network; otherwise, the distribution evaluation result is: the 2G/3G network interoperability parameter configuration needs to be optimized; Among them, A is the 2G/3G interoperability parameter index; the proportion of cells with appropriate interoperability parameters refers to the proportion of cells whose configuration parameters are within a reasonable range among the formulated interoperability parameters.

Obtain the 2G/3G/4G interoperability parameter index according to formula 4:

B=(∑Proportion of suitable cells for each type of interoperability parameter configuration)/number of interoperability parameter types;

If the 2G/3G/4G interoperability parameter index is higher than the fourth preset threshold, the distribution evaluation result is: conform to the configuration suggestion of the preferred 4G network; otherwise, the distribution evaluation result is: need to optimize 2G/3G/4G network interoperability Parameter configuration; where, B is the 2G/3G/4G interoperability parameter index; the proportion of cells with appropriate interoperability parameter configuration refers to the proportion of cells whose configuration parameters are within a reasonable range among the interoperability parameters formulated.

As shown in table 2:

Table 2 Distribution index and interoperability parameter index of the network to be distributed

Specifically, each parameter and threshold of the diversion index and/or interoperability parameter index of the to-be-distributed network implemented above in the present invention can be defined by itself, for example, α=0.4, β=0.6, γ=0.4, δ=0.6. Furthermore, in step 113, the method for obtaining the site construction index, bearer index and/or terminal distribution index of the target distribution network is as follows, which are described from the perspectives of 3G (TD) network, 4G (LTE) network and WLAN network respectively: according to formula 5 Obtain the website construction index of the target distribution network TD:

C=α×GSM high-traffic cell has a ratio of TD stations+β×GSM high-load cell has a ratio of TD stations;

If the site construction index of the target distribution network TD is higher than the fifth preset threshold, the distribution evaluation result is: use the TD network for distribution; otherwise, use the TD station construction to perform distribution; wherein, C is the station construction index of the target distribution network TD; α, β is a constant, and the proportion of GSM high-traffic cells with TD stations is the proportion of GSM high-traffic cells with TD stations with the same site and coverage in the entire network; GSM high-load cells have TD stations with the same site and coverage The ratio of stations is the proportion of GSM high-load cells with the same site address and coverage TD stations in the GSM high-load cells of the entire network:

D=(α×GSM high-traffic cell ratio with LTE stations+β×GSM high-load cell ratio with LTE stations)×k+(γ×TD high-traffic cell ratio with LTE stations+δ×TD high-load cell ratio with LTE The ratio of stations)×(1-k);

If the site construction index of the target distribution network LTE is higher than the sixth preset threshold, the distribution evaluation result is: use the LTE network distribution; otherwise, the distribution is carried out through the LTE station construction: wherein, D is the LTE station construction index; α, β, γ, δ, and k are constants; the proportion of GSM high-traffic cells with LTE stations is the proportion of GSM high-traffic cells with LTE stations with the same site address and coverage in the entire network; GSM high-load cells have LTE stations The proportion of GSM high-load cells with LTE stations with the same site and coverage in the GSM high-load cells of the entire network; the proportion of TD high-traffic cells with LTE stations is the ratio of TD high-traffic cells with LTE stations with the same site and coverage The proportion of TD high-traffic cells in the entire network; the proportion of TD high-load cells with LTE stations is the proportion of TD high-load cells with LTE stations with the same site address and coverage in the entire network of TD high-load cells.

Obtain the site construction index of the target distribution network WLAN according to formula 7:

E=α×GSM high-traffic community has WLAN station ratio+β×GSM high-load community has WLAN station ratio)×k+(γ×TD high-traffic community has WLAN station ratio+δ×TD high-load community has WLAN station The ratio of) × (1-k);

If the site construction index of the target distribution network WLAN is higher than the seventh preset threshold, the distribution evaluation result is: use WLAN network distribution; otherwise, the distribution is performed through WLAN station construction; wherein, E is the station construction index of WLAN; α, β, γ, δ, and k are constants; the proportion of GSM high-traffic cells with WLAN stations is the proportion of GSM high-traffic cells with the same site address and coverage of WLAN stations in the entire network of GSM high-traffic cells; GSM high-load cells have WLAN stations The proportion of GSM high-load cells with the same site and coverage of WLAN stations in the entire network of GSM high-load cells; The proportion of TD high-traffic cells in the entire network; the proportion of TD high-load cells with WLAN stations is the proportion of TD high-load cells with WLAN stations with the same site address and coverage in the entire network of TD high-load cells.

Obtain the bearer index of the target offload network 3G network according to formula 8:

F=Number of cells with high TD code resource busy-idle ratio/Number of TD cells with the same site and coverage of GSM high traffic;

If the bearer index of the 3G network of the target offload network is higher than the eighth preset threshold, the offload evaluation result is that the 3G network bears better; otherwise, the offload evaluation result is that the 3G network is used for offload;

Among them, F is the bearer index of the 3G network of the target distribution network; code resource busy-idle rate=(m×uplink occupied BRU number in busy time+n×downlink occupied BRU number in busy time)/[K×(m×uplink total available BRU number +n×number of all available downlink BRUs)], m and n are the uplink attention factor and downlink attention factor respectively, and K is the ratio of the number of channels that can be carried by the system to the number of available channels in the system.

Obtain the bearer index of the 4G network of the target distribution network according to the following formula 9:

G = Number of cells with high LTE wireless resource utilization in the same site and coverage/Number of LTE cells with the same site and coverage in GSM and TD high traffic cells;

If the bearer index of the target offload network 4G network is higher than the ninth preset threshold, the offload assessment result is that the 4G network bears better; otherwise, the offload assessment result is that the 4G network offload is used; wherein, G is the target offload network 4G network Bearing index; the number of cells with high LTE wireless resource utilization rate in the same site and coverage is the LTE cell with the same site and coverage, and the wireless resource utilization rate is greater than or equal to the preset utilization rate; GSM and TD high traffic cells The number of LTE cells with the same site and coverage in China is the number of LTE cells with the same site and coverage in GSM high-traffic cells plus the number of LTE cells with the same site and coverage in TD high-traffic cells and the number of de-overlapped cells is reduced.

Obtain the bearer index of the target distribution network WLAN network according to formula 10:

H=1-The ratio of idle hotspots of WLAN at the same site and coverage:

If the bearing index of the target distribution network WLAN network is higher than the tenth preset threshold, the distribution evaluation result is that the WLAN network bears better; otherwise, the distribution evaluation result is that the WLAN network is used for distribution; where H is the target distribution network WLAN network Bearing index; WLAN idle hotspots are WLAN networks whose daily average traffic per node is less than the preset traffic value and the daily average number of users is less than the preset user value.

Obtain the terminal distribution index of the target distribution network 3G network according to formula 11:

M = proportion of TD terminals in the entire network × proportion of 3G network used by TD terminals;

If the terminal distribution index of the target distribution network 3G network is higher than the eleventh preset threshold, the distribution evaluation result is that the TD terminal distribution basis is better; otherwise, the distribution evaluation result is that the TD terminal distribution is used; wherein, M is the target distribution The terminal distribution index of the network 3G network; the proportion of TD terminals in the entire network is the number of TD terminals/the number of terminals in the entire network; the proportion of TD terminals using 3G networks is the number of TD terminals on the 3G network/number of TD terminals.

Obtain the terminal distribution index of the target distribution network 4G network according to formula 12:

N = proportion of LTE terminals in the entire network × proportion of LTE terminals using 4G networks;

If the terminal distribution index of the 4G network of the target distribution network is higher than the twelfth preset threshold, the distribution evaluation result is that the distribution basis of LTE terminals is better; otherwise, the distribution evaluation result is that LTE terminals are used for distribution; where N is the target distribution The terminal distribution index of the network 4G network; the proportion of LTE terminals in the entire network is the number of LTE terminals/the number of terminals in the entire network; the proportion of LTE terminals using 4G networks is the number of LTE terminals on the 4G network/the number of LTE terminals.

Specifically, each parameter and threshold can also be defined by itself, for example, α=0.4, β=0.6, γ=0.4, δ=0.6, k=0.5. The specific definition of each indicator is shown in Table 3:

Table 3 The site construction index, bearing index and terminal distribution index of the target distribution network

When determining the target distribution network area according to the contents of Table 3, it is necessary to first determine the same site and coverage association relationship between the network area to be distributed and the target distribution network area, and judge the surrounding network situation of the distribution network area based on this association model. A simple analysis mode for judging station spacing based on latitude and longitude and an accurate analysis mode for judging based on latitude and longitude and antenna direction angle are given here. Here we take GSM, TD-SCDMA, LTE and WALN four networks as an example to give specific algorithms. Each threshold can be set as required, here is just an example:

The mapping relationship between the same site and coverage among 2G network, 3G network, 4G network and WLAN network includes:

For 2G indoors, only the same site is considered for 3G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 2G indoor and 3G indoor are on the same site;

For 2G indoors, only the same site is considered for WLAN hotspots, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 2G indoor and WLAN hotspots are on the same site;

2G outdoor, for 3G outdoor, when the station distance is less than or equal to the common site distance, 2G outdoor and 3G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K1, 2G outdoor Same coverage as 3G outdoor, where K1 is a constant;

2G outdoor, for WLAN hotspots, when the station distance is less than or the same site as the station distance, the 2G outdoor and WLAN hotspots are on the same site; when the station distance is less than or equal to the coverage radius of GSM × K2-WLAN Hotspots are the same as coverage, where K2 is a constant;

For 2G indoors, only the same site is considered for 4G indoors. When the distance between stations is less than or equal to the distance between common sites, 2G indoors and 4G indoors are on the same site;

2G outdoor, for 4G outdoor, when the station distance is less than or equal to the common site station distance, 2G indoor and 4G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K3, 2G outdoor Same coverage for 4G outdoors, where K3 is a constant.

Or 3G indoors. For 2G indoors, only the same site is considered. When the distance between stations is less than or equal to the distance between common sites, 3G indoors and 2G indoors are on the same site;

3G outdoor, for 2G outdoor, when the station distance is less than or equal to the common site station distance, the 3G indoor and 2G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K4, 3G indoor Same coverage as 2G outdoor, where K4 is a constant;

For 3G indoors, only the same site is considered for WLAN hotspots, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 3G indoor and WLAN hotspots are on the same site;

3G outdoor, for WLAN hotspots, when the distance between stations is less than or equal to the distance between co-site stations, the 3G outdoor and WLAN hotspots are on the same site; WLAN hotspots have the same coverage, where K5 is a constant;

For 3G indoors, only the same site is considered for 4G indoors, and when the inter-site distance is less than or equal to the co-site inter-site distance, the 3G indoor and 4G indoor are on the same site;

3G outdoor, for 4G outdoor, when the station distance is less than or equal to the common site station distance, the 3G outdoor and 4G outdoor are on the same site; when the station distance is <= (LTE coverage radius + TD coverage radius) × K6, 3G outdoor Same coverage as 4G outdoor, where K6 is a constant.

Or 4G indoors. For 3G indoors, only the same site is considered. When the distance between stations is less than or equal to the distance between common sites, 4G indoors and 3G indoors are on the same site;

4G outdoor, for 3G outdoor, when the station distance is less than or equal to the common site distance, the 4G outdoor and 3G outdoor are on the same site; when the station distance is less than or equal to (LTE coverage radius + TD coverage radius) × K7, 4G Outdoor coverage is the same as 3G outdoor coverage, where K7 is a constant.

Or WLAN hotspots, for 2G indoors, only the same site is considered, and when the distance between sites is less than or equal to the distance between common sites, WLAN hotspots and 2G indoors are on the same site;

For WLAN hotspots, only the same site is considered for 3G indoors. When the distance between sites is less than or equal to the distance between common sites, WLAN hotspots and 3G indoors are on the same site;

WLAN hotspots, for 2G outdoors, when the distance between stations is less than or equal to the distance between common sites, WLAN hotspots and 2G outdoors have the same site; the distance between stations is less than or equal to GSM coverage radius × K8-WLAN coverage radius, WLAN hotspots and 2G outdoors Same coverage, where K8 is a constant;

WLAN hotspots, for 3G outdoors, when the distance between stations is less than or equal to the distance between common sites, the WLAN hotspots and 3G outdoors have the same site; when the distance between stations is less than or equal to TD coverage radius × K9-WLAN coverage radius, WLAN The outdoor coverage is the same, where K9 is a constant.

And the methods for determining the same site and same coverage cell among 2G network, 3G network, 4G network and WLAN network include:

When there are 3G sites at the same site, regardless of the calculation of the same coverage, a 3G cell with the smallest absolute value of the azimuth difference is selected;

When there is no 3G site with the same site, if there is a 3G cell with the same coverage, select the 3G cell with the same coverage within the range of the station distance; if there is no 3G cell with the same coverage, select the nearest cell within the distance The same direction means the cell with the same coverage; otherwise, there is no 3G cell with the same site and the same coverage.

Or the method for determining the same site and same coverage cell between 2G network, 3G network, 4G network and WLAN network includes:

When there are 4G sites at the same site, regardless of the calculation of the same coverage, select a 4G cell with the smallest absolute value of the azimuth difference;

When there is no 4G site with the same site, if there is a 4G cell with the same coverage, select the 4G cell with the same coverage within the range of the station distance; if there is no 4G cell with the same coverage, select the nearest cell within the distance between the stations The same direction means the cell with the same coverage; otherwise, there is no 4G cell with the same site and the same coverage.

Specifically, the simple analysis mode is as follows:

Relationship 1. Same site and coverage mapping relationship between GSM/TD-SCDMA/WLAN:

For GSM indoors, for TD indoors, only the same site is considered, that is, the requirement: the distance between stations <= the distance between stations at the same site;

GSM indoors, for WLAN hotspots, only the same site is considered, that is, the requirement: site distance <= common site site distance;

GSM outdoors, for TD outdoors, the same site requirements: station spacing <= common site site spacing; same coverage requirements: distinguish between dense urban areas, suburban areas, and rural areas, and the station spacing respectively <= (GSM coverage radius (dense urban areas) + TD coverage radius (in dense urban areas))*K meters, (GSM coverage radius (suburbs)+TD coverage radius (suburbs))*K meters, (GSM coverage radius (rural areas)+TD coverage radius (rural areas)) * K meters;

For GSM outdoors, for WLAN hotspots, the same site requirements: station distance <= co-site station distance; same coverage requirements: station distance respectively <= coverage radius of GSM (dense urban areas) * coverage radius of K-WLAN.

Relationship 2. The same site and coverage mapping relationship between GSM/LTE:

For GSM indoors, for LTE indoors, only the same site is considered, that is, the requirement: the distance between stations <= the distance between stations at the same site;

GSM outdoors, for LTE outdoors, the same site requirements: station distance <= common site station distance; same coverage requirements: distinguish dense urban areas, suburban areas, and rural areas, and the station distances are respectively <= (GSM coverage radius (dense urban areas) + LTE coverage radius (in dense urban areas))*K meters, (GSM coverage radius (suburbs)+LTE coverage radius (suburbs))*K meters, (GSM coverage radius (rural areas)+LTE coverage radius (rural areas)) *K meters.

Relationship 3. The same site and coverage mapping relationship between LTE/GSM:

For LTE indoors, for GSM indoors, only the same site is considered, that is, the requirement: the distance between stations <= the distance between stations at the same site;

For LTE outdoors, for GSM outdoors, the same site requirements: station distance <= common site station distance; same coverage requirements: distinguish dense urban areas, suburban areas, and rural areas, and the station distances are respectively <= (GSM coverage radius (in dense urban areas) + LTE coverage radius (in dense urban areas))*K, (GSM coverage radius (suburbs)+LTE coverage radius (suburbs))*K, (GSM coverage radius (rural areas)+LTE coverage radius (rural areas))*K .

Relationship 4. Mapping relationship between TD-SCDMA/GSM/WLAN on the same site and coverage:

For TD indoors, for GSM indoors, only the same site is considered, that is, the requirement: the distance between stations <= the distance between stations at the same site;

For TD indoors, only the same site is considered for WLAN hotspots, that is, the requirement: site distance <= common site site distance;

For TD outdoors, for GSM outdoors, the same site requirements: station spacing <= common site site spacing; same coverage requirements: distinguish between dense urban areas, suburban areas, and rural areas, and the station spacing respectively <= (GSM coverage radius (in dense urban areas) + TD coverage radius (in dense urban areas))*K, (GSM coverage radius (suburbs)+TD coverage radius (suburbs))*K, (GSM coverage radius (rural areas)+TD coverage radius (rural areas))*K ;

TD outdoor, for WLAN hotspots, the same site requirements: station distance <= co-site station distance; same coverage requirements: station distance respectively <= TD coverage radius (dense urban areas) * K-WLAN coverage radius.

Relationship 5. The same site and coverage mapping relationship between LTE/TD-SCDMA:

For LTE indoors, for TD indoors, only the same site is considered, that is, the requirement: the distance between stations <= the distance between stations at the same site;

For LTE outdoors, for TD outdoors, the same site requirements: station spacing <= common site site spacing; same coverage requirements: distinguish between dense urban areas, suburban areas, and rural areas, and the site spacing respectively <= (LTE coverage radius (dense urban area) + TD coverage radius (in dense urban areas))*K meters, (LTE coverage radius (suburbs)+TD coverage radius (suburbs))*K meters, (LTE coverage radius (rural areas)+TD coverage radius (rural areas)) *K meters.

Relationship 6. The same site and coverage mapping relationship between TD-SCDMA/LTE:

TD indoor, for LTE indoor, only the same site is considered, that is, the requirement: site distance <= common site site distance;

For TD outdoors, for LTE outdoors, the same site requirements: station distance <= common site station distance; same coverage requirements: distinguish dense urban areas, suburban areas, and rural areas, and the station distances are respectively <= (LTE coverage radius (in dense urban areas) + TD coverage radius (in dense urban areas))*K, (LTE coverage radius (suburbs)+TD coverage radius (suburbs))*K, (LTE coverage radius (rural areas)+TD coverage radius (rural areas))*K .

Relationship 7. Mapping relationship between the same site site and coverage between WLAN/GSM/TD-SCDMA:

For WLAN hotspots, only the same site is considered for GSM indoors, that is, the requirement: the distance between stations <= the distance between stations at the same site;

For WLAN hotspots, only the same site is considered for TD indoors, that is, the requirement: site distance <= common site site distance;

WLAN hotspots, for GSM outdoors, the same site requirements: station distance <= common site station distance; same coverage requirements: station distance respectively <= GSM coverage radius (dense urban areas) * K-WLAN coverage radius;

For WLAN hotspots, for TD outdoors, the same site requirements: station distance <= co-site station distance; same coverage requirements: station distance respectively <= TD coverage radius (dense urban areas) * K-WLAN coverage radius.

Further, the precise analysis mode is as follows, calculated according to latitude and longitude, cell type (indoor/outdoor), coverage type (dense urban/suburb/rural), and azimuth:

Algorithm of same-site-same-coverage mapping relationship between GSM/TD-SCDMA:

1. If there are TD sites with the same site, the calculation of the same coverage is not considered, and a TD cell with the smallest absolute value of the azimuth difference is selected; the priority is the highest;

2. For the TD cells with the same coverage, select the one with the largest overlapping coverage area, that is, the TD cells with the same coverage where there are antennas colliding within the optimal station distance (if there are multiple cells with the same azimuth angles that collide with each other, all TD cell with the same coverage), the priority is lower than that of the same site;

3. Otherwise, select the rear side with the closest distance within the range of station spacing as the same coverage cell; the priority is the lowest;

4. Otherwise, the G network cell has no TD cell with the same site and coverage;

Specific algorithm: the same-site-to-coverage mapping relationship between GSM/TD-SCDMA/WLAN is shown in the above-mentioned relationship 1; the same-site-to-coverage mapping relationship between TD-SCDMA/GSM/WLAN is shown in the above-mentioned relationship 4 .

Algorithm for the mapping relationship between the same site and the same coverage between GSM/LTE:

1. If there are LTE sites at the same site, the calculation of the same coverage is not considered, and an LTE cell with the smallest absolute value of the azimuth difference is selected; the priority is the highest;

2. For the LTE cells with the same coverage, select the one with the largest overlapping coverage area, that is, the LTE cells with the same coverage where the antennas fight against each other within the optimal station distance (if there are multiple cells with the same coverage with the same azimuth angle difference, all For LTE cells with the same coverage), the priority is lower than that of the same site;

3. Otherwise, select the rear side with the closest distance within the range of station spacing as the same coverage cell; the priority is the lowest;

4. Otherwise, the G network/T network cell does not have the same site and coverage LTE cell.

Specific algorithm: the same-site-to-coverage mapping relationship between GSM/LTE is shown in the above-mentioned relationship 2; the same-site-to-coverage mapping relationship between LTE/GSM is shown in the above-mentioned relationship 3.

Algorithm for same-site-same-coverage mapping relationship between LTE/TD-SCDMA:

1. If there are TD sites with the same site, the calculation of the same coverage is not considered, and a TD cell with the smallest absolute value of the azimuth difference is selected; the priority is the highest;

2. For the TD cells with the same coverage, select the one with the largest overlapping coverage area, that is, the TD cells with the same coverage where there are antennas colliding within the optimal station distance (if there are multiple cells with the same azimuth angles that collide with each other, all TD cell with the same coverage), the priority is lower than that of the same site;

3. Otherwise, select the rear side with the closest distance within the range of station spacing as the same coverage cell; the priority is the lowest;

4. Otherwise, there is no TD cell with the same site site and same coverage in this LTE cell.

Specific algorithm: the same-site and coverage mapping relationship between LTE/TD-SCDMA is shown in the above-mentioned relationship 5; the same-site and coverage mapping relationship between TD-SCDMA/LTE is shown in the above-mentioned relationship 6; WLAN/GSM The same site address and coverage mapping relationship between TD-SCDMA and TD-SCDMA is shown in the relationship 7 above.

Continuing from the above example, in step 12 of the above embodiment of the present invention, the step of judging according to the distribution evaluation result if there is a target distribution network area that can be distributed within a preset range around the network area to be distributed includes:

Step 121, if the distribution evaluation result indicates that the network to be distributed needs to be distributed, then determine the target distribution network within a preset range around the area of the network to be distributed; if the distribution evaluation result indicates that the network to be distributed does not need distribution, then end the process. If there is a target offload network around the source network area to be offloaded, that is, there is a target offload cell with the same site and coverage, the target offload network area is determined by the following method. Here, TD and LTE are used as target offload cells as examples, given Specific algorithm:

The steps for determining that the target distribution network is a 3G network include:

Determine the target offload network as the 3G target offload cell by Algorithm 9:

The network type of the cell is 3G network, and among the 3G network cells with GSM high-value cells with the same site and coverage, the 3G network cells with the 3G traffic residence ratio <75% are the 3G target offload cells;

Among them, the traffic resident ratio is divided into two algorithms based on whether there is analysis data. The calculation method 1 of the traffic resident ratio when there is analysis data is as follows:

When the TD cell is on the same site and covers GSM, the resident ratio of 3G traffic in the same coverage = the cell traffic of the TD cell in the same coverage area / (the cell traffic of the TD cell + the TD terminal traffic of the 2G cell with the same coverage) × 100% ; or when there is no analysis data, use the key performance indicator (KPI) to calculate the traffic retention ratio, that is, the calculation method 2 of the traffic retention ratio is as follows:

When the TD cell satisfies the same site site and GSM coverage, the resident ratio of the same coverage TD traffic = the cell traffic of the TD cell in the same coverage area / (the cell traffic of the TD cell + the cell traffic of the same coverage 2G cell) × 100% . Wherein, the unit of cell traffic is MB.

For these target distribution cells, it can be further judged whether they are user promotion cells; that is, if the conditions are met, the number of TD terminals<=10 (first value), TD terminal traffic<=100M (second value), then the target distribution cell is User promotion community.

Further, the steps of determining that the target offload network is a 4G network include:

Determine the target offload network as the 4G target offload cell in the 4G network by algorithm 10:

The network type of the cell is 4G network, and there are LTE network cells with the same site and coverage of GSM or TD (or high-value cells with the same site and coverage of GSM or TD), the proportion of LTE traffic is less than 75%, and the LTE The cell whose network wireless resource utilization rate is less than 50% is the target shunt cell;

Among them, the traffic resident ratio is divided into two algorithms based on whether there is analysis data. The calculation method 3 of the traffic resident ratio when there is analysis data is as follows:

LTE traffic resident ratio = daily average cell traffic of LTE cell / (average daily cell traffic of LTE + GSMLTE terminal traffic with the same coverage + TDLTE terminal traffic with the same coverage);

If the "daily average cell traffic" of the LTE cell/(LTE "daily average cell traffic" + GSM "LTE terminal traffic (MB)" of the same coverage + TD "LTE terminal traffic" of the same coverage) is less than the threshold (for example, <50% ) and LTE’s busy-time wireless resource utilization (definition refers to the definition of expansion, the maximum value of the three) is less than the threshold (eg <75%), output these LTE cells, and output their same site/coverage GSM and TD cells at the same time.

Or when there is no analysis data, use the key performance indicator (KPI) to calculate the traffic retention ratio, that is, the calculation method 4 of the traffic retention ratio is as follows:

The traffic residence ratio of the LTE cell = the daily average cell traffic of the LTE cell/(the average daily cell traffic of LTE + the average daily traffic of GSM with the same coverage + the average daily traffic of TD with the same coverage).

If the LTE cell's "daily average cell traffic"/(LTE "daily average cell traffic" + GSM "daily average traffic" of the same coverage + TD "daily average cell traffic" of the same coverage) is less than the threshold (for example, <50%) And the radio resource utilization rate of LTE is less than the threshold (for example <50%), output these LTE cells, and output the GSM and TD cells with the same site/coverage at the same time.

For these target distribution cells, it can be further judged whether they are user promotion cells; that is, if the conditions are met, the number of LTE terminals<=10 (first value), LTE terminal traffic<=100M (second value), then the target distribution cell is User promotion community.

In the above-mentioned embodiment of the present invention, in step 12, the step of diverting the traffic of the network area to be diverted to the target distribution network region according to the diversion strategy includes:

Step 122, divert the traffic of the network area to be distributed to the target distribution network area through interoperability parameter adjustment; and/or step 123, distribute the traffic of the network area to be distributed to the target distribution network area through user or service promotion.

To sum up, the offloading strategy includes interoperability parameters to be adjusted or through user or business promotion. The two offloading strategies are parallel offloading strategies, and one offloading strategy is determined according to the actual situation. If the first offloading is still high Value cells can be further divided by the method provided by the present invention until the cells are not high-value cells. The two distribution strategies are described in detail below:

In the embodiment of the present invention, by adjusting the interoperability parameters, it is easier for the user to divert to the target diversion network. Interoperability parameter analysis mainly analyzes whether the interoperability parameters of the live network meet the requirements, including standard or recommended value requirements. Recommended values can be preset according to shunt requirements. If the configured value exceeds the value specification or the verification range, or meets the abnormal parameter value judgment condition, it is considered that the parameter needs to be adjusted, and the adjustment range is the value specification.

As shown in Table 4, the 2G/3G interoperability parameters-TD cell interoperability parameters, judge whether the parameters need to be adjusted according to the judgment conditions:

Table 4 2G/3G interoperability parameters - TD cell

As shown in Table 5, 2G/3G/4G interoperability parameters - 3G cell interoperability parameters, according to the verification principle to determine whether the parameters need to be adjusted:

Table 5 2G/3G/4G interoperability parameters - 3G cell

As shown in Table 6, 2G/3G/4G interoperability parameters-LTE cell interoperability parameters, according to the verification principle to determine whether the parameters need to be adjusted:

Table 6 2G/3G/4G interoperability parameters - LTE cell

As shown in Table 7, the 2G/3G/4G interoperability parameters - the interoperability parameters of the 3G cell, judge whether the parameters need to be adjusted according to the verification principle:

Table 7 2G/3G/4G interoperability parameters - 3G cell

As shown in Table 8, 2G/3G/4G interoperability parameters - 2G cell interoperability parameters, according to the verification principle to determine whether the parameters need to be adjusted:

Table 8 2G/3G/4G interoperability parameters - 2G cell

It should be noted that the analysis of interoperability parameters can be performed for the entire network, or only for high-value cells or target offloaded cells.

Further, according to the terminal type in the terminal analysis data, the traffic of the terminal in each network, the duration of the terminal in each network and other information, analyze the users or terminals that need to be promoted. According to requirements, the following types can be included: each threshold value can be configured according to requirements.

Users to be promoted by TD terminal:

Meet the following conditions: non-TD terminals, users with high traffic demand with daily average dwell time >= 30 minutes, and daily average traffic >= 5M;

Among them, the daily average residence time = accumulated data service duration / data service active days; daily average flow rate = accumulated data service flow / data service active days. or

To be WLAN promotion user definition:

Satisfied conditions: in high-value cells of G/T network with the same coverage of WLAN, there are users who have data service requirements, stay for a long time, but do not use WLAN; that is, resident users in high-value cells of G/T network Users with data service requirements whose daily average total traffic generated on the G network + T network is >10M, and there is no usage record in the WLAN detailed list during the statistical period;

Among them, the resident user is defined as the user who resides in the community for at least 4/7 days in the statistical time and days, and the average dwell time of the day is >= 10 minutes; that is, the user resides in the community for at least 4 days in a week , and the average daily duration of the residency days >= 10 minutes, for example, the users who reside for at least 8 days in 2 weeks, and the total duration/8>= 10 minutes; within the statistical time range, there is no WLAN hotspot usage record. Traffic users are the target users for WLAN promotion. or

Users waiting for LTE terminal promotion:

Satisfied conditions: Non-LTE terminals, daily average dwell time >= 30 minutes, daily average traffic >= 10M users with high traffic demand; where daily average dwell time = cumulative data service time / data service active days; daily Average flow rate = accumulated data service flow/data service active days. or

Users waiting for LTE service promotion:

Satisfied conditions: whether it is an LTE terminal = yes, occupied network = 2G, TD, unoccupied network is LTE or occupied LTE network but the daily average traffic on the LTE network is <10MB (set threshold), and the user is accumulated in 2G, TD and LTE High-traffic LTE terminal users with data service traffic/data service active days>=10MB. or

TD lock users:

TERMN_TYP (terminal type) = 1 (TD terminal), TOTAL_FLOW > 10MB in the GPRS detailed list, and TD terminal users to be unlocked with TOTAL_FLOW = 0MB in the TD detailed list; that is: whether to support TD = yes, occupied network = 2G, unoccupied Network = TD, data traffic > = 10MB TD terminal users to be unlocked;

Among them, traffic, the time granularity is day, the total traffic within the statistical time range; for example, the total traffic of a week; the main active cells, the user can customize the dwell time or flow sorting; the main active cells are divided into those with the same site and coverage G network cells and G network cells with the same site and coverage do not exist.

Furthermore, in the embodiments of the present invention, the network to be offloaded or the target offloading network can be expanded or optimized to increase the network capacity. Specifically, if the network to be offloaded or the target offloading network can be expanded, then the network can be expanded . Capacity expansion analysis is to analyze the capacity of the network. It is mainly evaluated based on the code resource utilization rate of the cell, the number of users, the cell traffic, and the congestion rate. If the conditions are satisfied, the cell is to be expanded. It is necessary to increase the user license or increase the carrier frequency pair The district expands. Here, TD capacity expansion and LTE capacity expansion are taken as examples. Capacity expansion analysis can be carried out for the whole network cells or only for high-value cells or targeted distribution cells. Each threshold can be configured by itself.

Wherein, when the network to be offloaded or the target offloaded network is a 3G network, the 3G cell is evaluated by the following algorithm:

3G cells whose cell code resource utilization rate is greater than the threshold, PS domain RAB congestion rate is greater than the threshold, and the number of days of cell congestion within the statistical time range is greater than the threshold are 3G cells to be expanded;

Among them, the resource utilization rate of the cell code is equal to (the number of BRUs occupied by the uplink + the number of BRUs occupied by the downlink)/(the number of configured uplink BRUs + the number of configured downlink BRUs); the PS domain RAB congestion rate is equal to the PS domain RAB congestion times/RAB establishment number of requests; or

The 3G cell is evaluated by the following algorithm:

When the code resource busy-idle rate of the mixed carrier frequency of the 3G cell is greater than the threshold or the code resource busy-idle rate of the HSUPA carrier frequency of the 3G cell is greater than the threshold or the code resource busy-idle rate of the HSUPA carrier frequency of the 3G cell is greater than the threshold and the uplink DPCH channel BRU If the bearer efficiency is greater than the threshold, the 3G cell is a 3G cell to be expanded.

Among them, when the network to be offloaded or the target offloaded network is a 4G network, the 4G cell is evaluated by the following algorithm:

During the statistical period, the average number of RRC connected users when the local network is busy is greater than the number of purchased user licenses, and the 4G cell is a 4G cell to be expanded; or

The 4G cell is evaluated by the following algorithm:

During the statistical period, the wireless resource utilization rate of the LTE network is greater than the utilization threshold during busy hours, and the average number of active RRC connected users is greater than the user capacity threshold during busy hours, and the downlink traffic is greater than the downlink traffic threshold when the cell is busy or the uplink traffic is greater than the uplink traffic when the cell is busy Traffic threshold, the 4G cell is a 4G cell to be expanded.

Specifically, the T(3G) network evaluation algorithm for cells to be expanded:

Algorithm 1: Satisfied whether TD congested cell = yes (cell code resource utilization rate (%)>30%, PS domain RAB congestion rate (%)>5%, within the statistical time range, the proportion of congested days>=4/7 TD cell), the T network cell with insufficient resources, is the T network belt expansion cell;

Among them, cell code resource utilization rate (%): refers to the overall cell code resource utilization rate, (the number of BRUs occupied by the uplink + the number of BRUs occupied by the downlink)/(the number of configured uplink BRUs + the number of configured downlink BRUs)*100% ;

PS domain RAB congestion rate (%): PS domain RAB establishment congestion times/RAB establishment request times*100%;

Algorithm 2: When any carrier frequency in the cell satisfies the following conditions, the carrier frequency is the carrier frequency to be expanded, and the cell is the cell to be expanded:

1) The R4 (mixed) carrier frequency expansion threshold is 90% of the upper limit of the code resource busy-idle rate, that is, the code resource busy-idle rate of R4 (mixed carrier frequency) is greater than 90% and needs to be expanded;

2) The busy-idle rate of HSUPA carrier code resources is greater than 90%, and capacity expansion is required;

3) The busy-idle rate of the HSDPA carrier frequency code resource is greater than 85%, and the BRU carrying efficiency of the uplink DPCH channel is greater than 0.7kbps, and capacity expansion is required.

Among them, code resource busy-idle rate=(m×number of uplink occupied BRUs during busy time+n×number of downlink occupied BRUs during busy time)/[K×(m×number of available uplink BRUs+n×number of available downlink BRUs)]

Specifically, m and n are the uplink and downlink attention factors respectively (m=1, n=0 at this stage); the K value means that under the premise of ensuring a certain network quality (GOS=2%), the system carrying capacity and system availability The number of channels is not equal, the ratio of the two is the K value, and the K value is a small value in the case of limited interference and limited resources; it is suitable for R4, HSDPA, HSUPA and R4 and mixed carrier frequencies, among which HSDPA and HSUPA The carrier frequency utilization rate is calculated according to the uplink accompanying channel utilization rate.

LTE capacity expansion evaluation algorithm:

There are two types of LTE network expansion, one is user license expansion at the local network (city) level, and the other is carrier frequency expansion evaluation at the cell level. The specific algorithm is as follows:

1. Judgment on license expansion of local network users:

During the statistical period, when the local network is busy, the average number of RRC connected users is greater than the number of purchased user licenses, and capacity expansion is performed by adding user licenses. The specific expansion scale is as follows:

Scale of user license expansion = rounding up to the nearest whole number (the average number of RRC connections during busy hours at the end of the planning period - the number of user licenses configured on the live network).

Among them, the average number of RRC connections during busy hours at the end of the planning period = the number of users at the end of the planning period╳activation factor. The activation factor represents the user's activeness in using the LTE network, and is related to the user's business model and user distribution. Different local networks have different values. In actual operation, it is determined on a weekly basis by companies in various cities. The specific definition and statistical method are as follows: activation factor=(average number of RRC connection users/number of users×100% when busy);

Currently, there are 8 user license quotation units: 10,000, 5,000, 10,000, 20,000, 50,000, 100,000, 200,000, and 500,000. User licenses are shared within the local network.

2. Cell carrier frequency expansion judgment:;

If within the statistical period, the LTE network radio resource utilization rate is greater than the utilization rate threshold when busy, and the average number of active RRC connected users is greater than the user capacity threshold when busy, and the downlink traffic when the cell is busy is greater than the downlink traffic threshold or the uplink traffic is busy when the cell is busy The traffic is greater than the upstream traffic threshold, and the capacity is expanded by increasing the carrier frequency;

The initial proposal for the utilization threshold is 100%, the initial proposal for the user capacity threshold is 30, and the initial proposal for the upstream/downstream traffic threshold is 1GByte/5GByte; the statistical period is recommended to be one week, and the statistical data is a weekly average. in:

LTE network wireless resource utilization rate=MAX{uplink service channel utilization rate during busy hours; downlink service channel utilization rate during busy hours; control channel utilization rate during busy hours}, wherein,

Utilization rate of uplink service channel during busy time = Utilization rate of PUSCH PRB during busy time = average number of occupied downlink PUSCH PRBs during busy time/(average number of available downlink PUSCH PRBs during busy time×K1);

Utilization rate of downlink service channel during busy time = PDSCH PRB utilization rate during busy time = average occupied uplink PDSCH PRB during busy time/average available uplink PDSCH PRB during busy time×K2);

Control Channel Utilization Rate in Busy Hours = PDCCH CCE Utilization Rate in Busy Hours = Average PDCCH CCE Occupancy in Busy Hours/Average Available PDCCH CCEs in Busy Hours * K3);

Meaning of K value: Considering factors such as interference level control, access control, and handover reserved resources in the system, the K value is introduced into the stable and available resources of the system. The initial recommended value is K1=K2=K3=0.5, and the follow-up can be based on the current network situation Verify and correct.

Wherein, downlink cell traffic = number of downlink bytes on the user plane of the cell during busy hours; uplink cell traffic = number of uplink bytes on the user plane of the cell during busy hours.

Following the above example, if the network to be offloaded or the target offloaded network is a cell with weak coverage, poor quality or interference, optimize the network. In the embodiment of the present invention, weak coverage, poor quality or interference cells are called wireless problem cells; the analysis of wireless problem cells includes weak coverage evaluation, poor quality evaluation, interference evaluation and capacity expansion evaluation for each cell, and the evaluation results are given for positioning Network problems and network optimization, such as coverage enhancement, interference elimination and capacity expansion, etc. to optimize the network. Cell analysis with wireless problems can be performed on the entire network, or only on high-value cells or targeted offloaded cells. Each threshold can be configured according to requirements. As shown in Table 9, the determination method of 2G weak coverage cells:

Table 9 2G weak coverage cells

Among them, the uplink weak coverage ratio (%): the proportion of the sampling points with the uplink level of the serving cell ≤ -95dBm in the total sampling points. Downlink weak coverage ratio (%): The proportion of sampling points with downlink level ≤ -95dBm in the serving cell among the total sampling points. As shown in Table 10, the determination method of 2G poor quality cells:

Table 10 2G poor quality cells

Among them, the proportion of poor downlink quality (%), the proportion of sampling points with downlink quality ≥ 5 in the serving cell in the total sampling points; the proportion of poor uplink quality (%), the proportion of sampling points with uplink quality ≥ 5 in the serving cell among the total sampling points proportion.

As shown in Table 11, the determination method of TD weak coverage cell:

Table 11 TD weak coverage cells

Among them, the proportion of weak coverage of the cell (%), the proportion of the sampling points of the serving cell RSCP≤-95dBm in the total sampling points.

As shown in Table 12, the determination method of TD poor quality cell:

Table 12 TD poor quality community

Wherein, the cell interference ratio (%): the proportion of the sampling points of the serving cell ISCP>=-90dBm in the total sampling points.

As shown in Table 13, the determination method of LTE weak coverage cells:

Table 13 LTE weak coverage cells

Among them, the cell weak coverage ratio (%): the ratio of the sampling points with RSRP≤-110dBm in the serving cell to the total sampling points.

As shown in Table 14, the determination method of LTE interfering cells:

Table 14 LTE interfering cells

Continuing from the above, in step 12, it is judged according to the distribution evaluation result that if there is no target distribution network area that can be distributed within a preset range around the network area to be distributed, then the traffic of the network area to be distributed is distributed to Target offload network zone. Specifically, there is no target offloading network around the source network area to be offloaded, which means that there is no target offloading network area with the same site and coverage. At this time, the target network offloading area is given by creating a new site. Here we take TD, WLAN and LTE as examples to give the determination algorithm. Each threshold can be set according to the needs. Here is just an example:

Create a new 3G site through the following algorithm:

During the statistical period, if the GSM cell is a high-value cell, there is no 3G network with the same site and coverage, the number of TD terminals is greater than or equal to 10, and the traffic of TD terminals is greater than or equal to 100M, a new 3G site will be built; among them, 2G For the TD terminals in the network high-value community, the time granularity is days, and the daily average TD terminal quantity within the statistical time range (the daily residence time >= 30 minutes);

Or, use the following algorithm to create a new 3G site:

During the statistical period, if the GSM cell is a high-value cell and there is no 2G network high-value site with the same site and coverage of the 3G network, a new 3G site will be built; among them, the TD terminal traffic in the 2G network high-value cell has a time granularity of one day, and statistics The daily average TD terminal traffic within the time range is greater than or equal to 100M.

Use the following algorithm to create a new WLAN site:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, there is no WLAN with the same site coverage, the number of WLAN terminals is greater than or equal to 10, and the traffic of WLAN terminals is greater than or equal to 100M. WLAN site; Wherein, the number of WLAN terminals is the daily average WLAN terminal quantity (day residence time >= 30 minutes) that resides in the cell within the statistical time frame, and the time granularity is days;

Alternatively, create a new WLAN site using the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, and there is no 2G network or 3G network high-value site with the same site address and coverage of WLAN, a new WLAN site is created; where WLAN terminal traffic = the number of residents in the cell within the statistical time range Daily average WLAN terminal service traffic, the time granularity is day.

Create a new 4G site through the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, does not have the same site and same coverage LTE, the number of LTE terminals is greater than or equal to 10, and the traffic of LTE terminals is greater than or equal to 100M, then a new 2G network or 3G network high-value site 4G site; if the obtained 2G network cell and the 3G network cell have the same site, remove the 3G site where the 2G site is shared; where, the number of LTE terminals = the daily average number of LTE terminals residing in the cell within the statistical time range (the daily residence time >=30 minutes), the time granularity is days;

Or create a new 4G site through the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, and there is no 2G network or 3G network high-value site with the same site and LTE coverage, a new 4G site will be built; if the obtained 2G network cell and 3G network cell share the site , remove the 3G sites with 2G co-sites, wherein, LTE terminal traffic = the daily average LTE terminal service traffic of the resident cells within the statistical time range, and the time granularity is days.

The present invention proposes a method for balancing inter-network data flow, which can solve the problem of shunting high-flow or high-load areas in existing networks such as GSM networks or TD-SCDMA networks, and can realize these high-load areas to target areas such as Data distribution of TD-SCDMA network, LTE network and WLAN; the embodiment of the present invention can not only locate the area to be distributed and determine the target distribution area, but also provide specific methods and suggestions for data distribution (such as new sites, interoperability parameter adjustment, User promotion, capacity expansion, network wireless quality optimization), etc.; through this balancing method, the load of the area to be offloaded can be reduced, and the carrying efficiency of the target offloaded area can be improved. Through inter-network traffic balancing and four-network coordination, network quality can be improved and network operation can be reduced. Cost, to ensure that the existing network resources and quality meet user needs.

According to the detailed description of the balancing method of the above-mentioned network data traffic, the basic flow of the embodiment of the present invention is shown in Figure 2:

The main process of this patent is as follows:

Step 1. Carry out overall distribution evaluation of the network, locate the main problem of distribution, determine the data flow balance target, and guide the various steps related to distribution;

Step 2, select the network area to be distributed and determine the target distribution network based on the data traffic balance target;

Step 3, determine whether there is a target distribution network area around the network area to be distributed, if not, perform target distribution network distribution by creating a new site;

Step 4, if it is determined that there is a target distribution network area, it is necessary to further determine whether the distribution can be performed by adjusting the interoperability parameters, and if so, the distribution can be performed by adjusting the interoperation parameters.

Step 5, if it is judged that there is a target distribution network area, it is necessary to further determine whether distribution can be distributed through user or service promotion, and if so, distribution through user or service promotion.

The above steps 4 and 5 can also be: step 4a, if it is judged that there is a target offloading network area, whether it is possible to further offload by adjusting the interoperability parameters, if yes, by adjusting the interoperability parameters to offload; if not, further judge whether It can be diverted through user or business promotion, and if so, through user or business promotion. Alternatively, in step 4b, if it is judged that there is a target offloading network area, it is necessary to further judge whether offloading can be done through user or service promotion. If so, divert by adjusting interoperability parameters.

In addition, for the network area to be offloaded and the target offloaded network area, it is also possible to evaluate whether the own network needs to be expanded, and if so, perform network expansion and offloading.

In addition, for the network area to be offloaded and the target offloaded network area, it is also possible to evaluate whether its own network is a cell with weak coverage, a cell with poor quality, or an interfering cell, and if so, perform network optimization.

In order to better achieve the above purpose, as shown in FIG. 3, an embodiment of the present invention also provides a system for balancing network data traffic, including:

An acquisition module 31, configured to acquire an offload evaluation result of the network area to be offloaded;

An offloading module 32, configured to determine according to the offloading evaluation result that if there is a target offloading network area that can be offloaded within a preset range around the network area to be offloaded, obtain an offloading strategy, and divide the network area to be offloaded according to the offloading strategy The traffic of the network area to be distributed is distributed to the target distribution network area, otherwise, the traffic of the network area to be distributed is distributed to the target distribution network area through a new site.

Wherein, in a specific embodiment of the present invention, the acquisition module 31 includes:

A determining module, configured to determine the network area to be distributed;

The first obtaining submodule is used to obtain the distribution index and/or the interoperability parameter index of the network to be distributed;

The second obtaining sub-module is used to obtain the site construction index, bearer index and/or terminal distribution index of the target distribution network;

The third acquisition sub-module is used to obtain the distribution evaluation result of the network area to be distributed according to the distribution index and/or interoperability parameter index of the network to be distributed, and the site construction index, bearer index and/or terminal distribution index of the target distribution network .

Wherein, in a specific embodiment of the present invention, the determination module includes:

The determination sub-module is used to determine the network area to be offloaded according to the occupation of network resources, service flow information, terminal related information, and user or service requirement information.

Wherein, in a specific embodiment of the present invention, the network area to be offloaded is determined to be a 2G outdoor high-value community by the following algorithm:

2G outdoor high-value cells with daily average cell traffic higher than the threshold, uplink PDCH multiplexing during daily average busy hours or downlink PDCH multiplexing during daily average busy hours higher than the threshold, and wireless utilization rate during daily average busy hours higher than the threshold; or

The network area to be offloaded is determined to be a 2G indoor high-value cell by the following algorithm:

A 2G indoor high-value cell whose daily average cell traffic is higher than the threshold, the uplink PDCH multiplexing degree during the daily average busy hour or the downlink PDCH multiplexing degree during the daily busy hour is higher than the threshold, and the wireless utilization rate during the daily average busy hour is higher than the threshold; or

Use the following algorithm to determine the network area to be offloaded as a TD outdoor high-value community:

TD outdoor high-value cells whose daily average cell traffic is higher than the threshold and whose daily average busy hour cell code resource utilization rate is higher than the threshold; or

Use the following algorithm to determine the network area to be offloaded as a TD indoor high-value community

TD indoor high-value cells whose daily average cell traffic is higher than the threshold and whose daily average busy hour cell code resource utilization rate is higher than the threshold.

Wherein, in a specific embodiment of the present invention, the distribution index of the 2G network is obtained according to the following formula:

X=1-(α×2G high-traffic cell ratio+β×2G high-load cell ratio);

If the offload index of the 2G network is lower than the first preset threshold, the offload evaluation result of the 2G network is: there is a offload demand;

Among them, X is the distribution index of 2G cells, α and β are constants, the proportion of 2G high-traffic cells is the proportion of 2G high-traffic cells in the 2G cells of the entire network, and the proportion of 2G high-load cells is the proportion of 2G high-load cells in the entire network of 2G cells. proportion of the district.

Wherein, in a specific embodiment of the present invention, the distribution index of the 3G network is obtained according to the following formula:

Y=1-(γ×3G high-traffic cell ratio+δ×3G high-load cell ratio);

If the offload index of the 3G network is lower than the second preset threshold, the offload evaluation result of the 3G network is: there is a offload demand;

Among them, Y is the distribution index of 3G cells, γ and δ are constants, the proportion of 3G high-traffic cells is the proportion of 3G high-traffic cells in the 3G cells of the entire network, and the proportion of 3G high-load cells is the proportion of 3G high-load cells in the entire network 3G proportion of the district.

Wherein, in a specific embodiment of the present invention, the 2G/3G interoperability parameter index is obtained according to the following formula:

A=(∑Proportion of suitable cells for each type of interoperability parameter configuration)/number of interoperability parameter types;

If the 2G/3G interoperability parameter index is higher than the third preset threshold, the distribution evaluation result is: a configuration suggestion for a preferred 3G network;

Among them, A is the 2G/3G interoperability parameter index; the proportion of cells with appropriate interoperability parameters refers to the proportion of cells whose configuration parameters are within a reasonable range among the formulated interoperability parameters.

Wherein, in a specific embodiment of the present invention, the 2G/3G/4G interoperability parameter index is obtained according to the following formula:

B=(∑Proportion of suitable cells for each type of interoperability parameter configuration)/number of interoperability parameter types;

If the 2G/3G/4G interoperability parameter index is higher than the fourth preset threshold, the distribution evaluation result is: a configuration suggestion for a preferred 4G network;

Among them, B is the 2G/3G/4G interoperability parameter index; the proportion of cells with appropriate interoperability parameter configuration refers to the proportion of cells whose configuration parameters are within a reasonable range among the formulated interoperability parameters.

Wherein, in a specific embodiment of the present invention, the station building index of the target distribution network TD is obtained according to the following formula:

C=α×GSM high-traffic cell has a ratio of TD stations+β×GSM high-load cell has a ratio of TD stations;

If the station building index of the target offload network TD is higher than the fifth preset threshold, the offload evaluation result is: use TD network offload;

Among them, C is the site construction index of the target distribution network TD; α and β are constants, and the proportion of GSM high-traffic cells with LTE stations is the proportion of GSM high-traffic cells with LTE stations in the GSM high-traffic cells of the entire network; GSM high-traffic cells have LTE stations; The proportion of loaded cells with LTE stations refers to the proportion of GSM high-loaded cells with LTE stations in the entire network of GSM high-loaded cells.

Wherein, in a specific embodiment of the present invention, the station building index of the target distribution network LTE is obtained according to the following formula:

D=(α×GSM high-traffic cell ratio with LTE stations+β×GSM high-load cell ratio with LTE stations)×k+(γ×TD high-traffic cell ratio with LTE stations+δ×TD high-load cell ratio with LTE The ratio of stations)×(1-k);

If the site construction index of the target offload network LTE is higher than the sixth preset threshold, the offload evaluation result is: using the LTE network offload:

Among them, D is the station construction index of LTE; α, β, γ, δ, and k are constants; the proportion of GSM high-traffic cells with LTE stations is the proportion of GSM high-traffic cells with LTE stations in the GSM high-traffic cells of the entire network ; The proportion of GSM high-load cells with LTE stations is the proportion of GSM high-load cells with LTE stations in the GSM high-load cells of the entire network; the proportion of TD high-traffic cells with LTE stations is the proportion of TD high-traffic cells with LTE stations The proportion of TD high-traffic cells in the entire network; the proportion of TD high-load cells with LTE stations is the proportion of TD high-load cells with LTE stations in the entire network of TD high-load cells.

Wherein, in a specific embodiment of the present invention, the site construction index of the target distribution network WLAN is obtained according to the following formula:

E=α×GSM high-traffic community has WLAN station ratio+β×GSM high-load community has WLAN station ratio)×k+(γ×TD high-traffic community has WLAN station ratio+δ×TD high-load community has WLAN station The ratio of) × (1-k);

If the station building index of the target distribution network WLAN is higher than the seventh preset threshold, the distribution evaluation result is: use WLAN network distribution;

Among them, E is the station establishment index of WLAN; α, β, γ, δ, and k are constants; the proportion of GSM high-traffic cells with WLAN stations is the proportion of GSM high-traffic cells with WLAN stations in the GSM high-traffic cells of the entire network ; The proportion of GSM high-load cells with WLAN stations is the proportion of GSM high-load cells with LTE stations in the GSM high-load cells of the entire network; the proportion of TD high-traffic cells with WLAN stations is the proportion of TD high-traffic cells with WLAN stations The proportion of TD high-traffic cells in the entire network; the proportion of TD high-load cells with WLAN stations refers to the proportion of TD high-load cells with WLAN stations in the entire network of TD high-load cells.

Wherein, in a specific embodiment of the present invention, the bearing index of the target distribution network 3G network is obtained according to the following formula:

F=Number of cells with high TD code resource busy-idle ratio/Number of TD cells with the same site and coverage of GSM high traffic;

If the bearer index of the 3G network of the target offload network is higher than the eighth preset threshold, the offload evaluation result is to use the 3G network offload;

Among them, F is the bearer index of the 3G network of the target distribution network; code resource busy-idle rate=(m×uplink occupied BRU number in busy time+n×downlink occupied BRU number in busy time)/[K×(m×uplink total available BRU number +n×number of all available downlink BRUs)], m and n are the uplink attention factor and downlink attention factor respectively, and K is the ratio of the number of channels that can be carried by the system to the number of available channels in the system.

Wherein, in a specific embodiment of the present invention, the bearing index of the target distribution network 4G network is obtained according to the following formula:

G = Number of cells with high LTE wireless resource utilization in the same site and coverage/Number of LTE cells with the same site and coverage in GSM and TD high traffic cells;

If the bearer index of the 4G network of the target offload network is higher than the ninth preset threshold, the offload evaluation result is to use 4G network offload;

Among them, G is the bearer index of the target offload network 4G network; the number of cells with high LTE wireless resource utilization rate in the same site and coverage is the LTE cell with the same site and coverage, and the wireless resource utilization rate is greater than or equal to the preset utilization rate The number of LTE cells with the same site and coverage in GSM and TD high-traffic cells is the number of LTE cells with the same site and coverage in GSM high-traffic cells plus the number of LTE cells with the same site and coverage in TD high-traffic cells Reduce the number of de-overlapped cells.

Wherein, in a specific embodiment of the present invention, the bearer index of the target distribution network WLAN network is obtained according to the following formula:

H=1-The ratio of idle hotspots of WLAN at the same site and coverage:

If the bearer index of the target offload network WLAN network is higher than the tenth preset threshold, the offload evaluation result is to use the WLAN network offload;

Among them, H is the bearing index of the target distribution network WLAN network; WLAN idle hotspots are WLAN networks whose daily average traffic per node is less than the preset traffic value and the daily average number of users is less than the preset user value.

Wherein, in a specific embodiment of the present invention, the terminal distribution index of the target distribution network 3G network is obtained according to the following formula:

M = proportion of TD terminals in the entire network × proportion of 3G network used by TD terminals;

If the terminal distribution index of the target distribution network 3G network is higher than the eleventh preset threshold, the distribution evaluation result is to use TD terminal distribution;

Among them, M is the terminal distribution index of the target distribution network 3G network; the proportion of TD terminals in the entire network is the number of TD terminals/the number of terminals in the entire network; the proportion of TD terminals using 3G networks is the number of TD terminals in the 3G network/number of TD terminals.

Wherein, in a specific embodiment of the present invention, the terminal distribution index of the target distribution network 4G network is obtained according to the following formula:

N = proportion of LTE terminals in the entire network × proportion of LTE terminals using 4G networks;

If the terminal offload index of the target offload network 4G network is higher than the twelfth preset threshold, the offload evaluation result is to use LTE terminal offload;

Among them, N is the terminal distribution index of the target distribution network 4G network; the proportion of LTE terminals in the entire network is the number of LTE terminals/the number of terminals in the entire network; the proportion of LTE terminals using 4G networks is the number of LTE terminals in the 4G network/number of LTE terminals.

Wherein, in a specific embodiment of the present invention, the distribution module 32 includes:

The first offloading sub-module is configured to determine a target offloading network within a preset range around the area of the network to be offloaded if the offloading evaluation result indicates that the offloading network needs to be offloaded.

Wherein, in a specific embodiment of the present invention, determining that the target distribution network is the first distribution sub-module of the 3G network includes:

Determine the target distribution network as the 3G target distribution cell in the 3G network by the following algorithm:

The network type of the cell is 3G network, and there are 3G network cells with the same site and GSM coverage, and the 3G network cells with 3G traffic residence ratio <75% are 3G target offload cells; or

Determine the target offload network as the 3G target offload cell by the following algorithm:

The network type of the cell is 3G network, and among the 3G network cells with GSM high-value cells with the same site and coverage, the 3G network cells with the 3G traffic residence ratio <75% are the 3G target offload cells;

Among them, the calculation method of traffic residence ratio is as follows:

When the TD cell is on the same site and covers GSM, the resident ratio of 3G traffic in the same coverage = the cell traffic of the TD cell in the same coverage area / (the cell traffic of the TD cell + the TD terminal traffic of the 2G cell with the same coverage) × 100% ;or

The calculation method of traffic residence ratio is as follows:

When the TD cell satisfies the same site site and GSM coverage, the resident ratio of the same coverage TD traffic = the cell traffic of the TD cell in the same coverage area / (the cell traffic of the TD cell + the cell traffic of the same coverage 2G cell) × 100% .

Wherein, in a specific embodiment of the present invention, determining that the target offloading network is the first offloading submodule of the 4G network includes:

Determine the target offload network as the 4G target offload cell in the 4G network by the following algorithm:

The network type of the cell is 4G network, and there are LTE network cells with the same site and coverage of GSM or TD (or high-value cells with the same site and coverage of GSM or TD), the proportion of LTE traffic is less than 75%, and the LTE The cell whose network wireless resource utilization rate is less than 50% is the target shunt cell;

Among them, the calculation method of traffic residence ratio is as follows:

LTE traffic resident ratio = daily average cell traffic of LTE cell/(LTE daily average cell traffic + GSMLTE terminal traffic with the same coverage + TDLTE terminal traffic with the same coverage); or

The calculation method of traffic residence ratio is as follows:

The traffic residence ratio of the LTE cell = the daily average cell traffic of the LTE cell/(the average daily cell traffic of LTE + the average daily traffic of GSM with the same coverage + the average daily traffic of TD with the same coverage).

Wherein, in a specific embodiment of the present invention, for the target offloading cell of the target offloading network, the target offloading cell is determined to be the user promotion cell by the following modules:

The user promotion module is used to determine that the target offloading cell is a user promotion cell when the number of cell terminals is less than or equal to the first value, and the cell terminal traffic is less than or equal to the second value.

Wherein, in a specific embodiment of the present invention, the splitting module 32 also includes:

The second offloading sub-module is used to offload the traffic in the network area to be offloaded to the target offloading network area for offloading through interoperability parameter adjustment; and/or

The third distribution sub-module is configured to distribute the traffic in the network area to be distributed to the target distribution network area through user or service promotion.

Wherein, in a specific embodiment of the present invention, the system further includes,

A capacity expansion module, configured to expand the capacity of the network if the network to be offloaded or the target offloaded network can be expanded.

Wherein, in the specific embodiment of the present invention, described system also comprises:

An optimization module, configured to optimize the network if the network to be offloaded or the target offloaded network is a cell with weak coverage, poor quality or interference.

Wherein, in a specific embodiment of the present invention, the distribution module 32 also includes:

The first new module is used to create a new 3G site through the following algorithm:

During the statistical period, if the GSM cell is a high-value cell, there is no 3G network with the same site and coverage, the number of TD terminals is greater than or equal to 10, and the traffic of TD terminals is greater than or equal to 100M, a new 3G site will be built; among them, 2G For TD terminals in high-value communities, the time granularity is days, and the daily average number of TD terminals within the statistical time range;

Or, the second building module is used to create a new 3G site through the following algorithm:

During the statistical period, if the GSM cell is a high-value cell and there is no 2G network high-value site with the same site and coverage of the 3G network, a new 3G site will be built; among them, the TD terminal traffic in the 2G network high-value cell has a time granularity of one day, and statistics The daily average TD terminal traffic within the time range is greater than or equal to 100M.

Wherein, in a specific embodiment of the present invention, the distribution module 32 also includes:

The third building module is used to create a new WLAN station through the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, there is no WLAN with the same site coverage, the number of WLAN terminals is greater than or equal to 10, and the traffic of WLAN terminals is greater than or equal to 100M. WLAN site; where, the number of WLAN terminals is the daily average number of WLAN terminals residing in the cell within the statistical time range, and the time granularity is days;

Or, the fourth newly-built module is used to create a new WLAN station through the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, and there is no 2G network or 3G network high-value site with the same site address and coverage of WLAN, a new WLAN site is created; where WLAN terminal traffic = the number of residents in the cell within the statistical time range Daily average WLAN terminal service traffic, the time granularity is day.

Specifically, in the above-mentioned embodiment of the present invention, the distribution module 32 further includes:

The fifth new module is used to create a new 4G site through the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, does not have the same site and same coverage LTE, the number of LTE terminals is greater than or equal to 10, and the traffic of LTE terminals is greater than or equal to 100M, then a new 2G network or 3G network high-value site 4G site; if the 2G network cell and the 3G network cell are obtained at the same site, remove the 3G site at the 2G site; where, the number of LTE terminals = the daily average number of LTE terminals residing in the cell within the statistical time range, and the time granularity is day ;

Or the sixth new module is used to create a new 4G site through the following algorithm:

If the 2G network cell or 3G network cell to be offloaded is a high-value cell, and there is no 2G network or 3G network high-value site with the same site and LTE coverage, a new 4G site will be built; if the obtained 2G network cell and 3G network cell share the site , remove the 3G sites with 2G co-sites, wherein, LTE terminal traffic = the daily average LTE terminal service traffic of the resident cells within the statistical time range, and the time granularity is days.

Specifically, in the above-mentioned embodiments of the present invention, the mapping relationship between the same site address and the same coverage among the 2G network, the 3G network, the 4G network and the WLAN network includes:

For 2G indoors, only the same site is considered for 3G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 2G indoor and 3G indoor are on the same site;

For 2G indoors, only the same site is considered for WLAN hotspots, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 2G indoor and WLAN hotspots are on the same site;

2G outdoor, for 3G outdoor, when the station distance is less than or equal to the common site distance, 2G outdoor and 3G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K1, 2G outdoor Same coverage as 3G outdoor, where K1 is a constant;

2G outdoor, for WLAN hotspots, when the station distance is less than or the same site as the station distance, the 2G outdoor and WLAN hotspots are on the same site; when the station distance is less than or equal to the coverage radius of GSM × K2-WLAN Hotspots are the same as coverage, where K2 is a constant;

For 2G indoors, only the same site is considered for 4G indoors. When the distance between stations is less than or equal to the distance between common sites, 2G indoors and 4G indoors are on the same site;

2G outdoor, for 4G outdoor, when the station distance is less than or equal to the common site station distance, 2G indoor and 4G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K3, 2G outdoor Same coverage for 4G outdoors, where K3 is a constant.

Specifically, in the above-mentioned embodiments of the present invention, the mapping relationship between the same site address and the same coverage among the 2G network, the 3G network, the 4G network and the WLAN network includes:

For 3G indoors, only the same site is considered for 2G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 3G indoor and 2G indoor are on the same site;

3G outdoor, for 2G outdoor, when the station distance is less than or equal to the common site station distance, the 3G indoor and 2G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K4, 3G indoor Same coverage as 2G outdoor, where K4 is a constant;

For 3G indoors, only the same site is considered for WLAN hotspots, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 3G indoor and WLAN hotspots are on the same site;

3G outdoor, for WLAN hotspots, when the distance between stations is less than or equal to the distance between co-site stations, the 3G outdoor and WLAN hotspots are on the same site; WLAN hotspots have the same coverage, where K5 is a constant;

For 3G indoors, only the same site is considered for 4G indoors, and when the inter-site distance is less than or equal to the co-site inter-site distance, the 3G indoor and 4G indoor are on the same site;

3G outdoor, for 4G outdoor, when the station distance is less than or equal to the common site station distance, the 3G outdoor and 4G outdoor are on the same site; when the station distance is <= (LTE coverage radius + TD coverage radius) × K6, 3G outdoor Same coverage as 4G outdoor, where K6 is a constant.

Specifically, in the above-mentioned embodiments of the present invention, the mapping relationship between the same site address and the same coverage among the 2G network, the 3G network, the 4G network and the WLAN network includes:

For 4G indoors, only the same site is considered for 3G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 4G indoor and 3G indoor are on the same site;

4G outdoor, for 3G outdoor, when the station distance is less than or equal to the common site distance, the 4G outdoor and 3G outdoor are on the same site; when the station distance is less than or equal to (LTE coverage radius + TD coverage radius) × K7, 4G Outdoor coverage is the same as 3G outdoor coverage, where K7 is a constant.

Specifically, in the above-mentioned embodiments of the present invention, the mapping relationship between the same site address and the same coverage among the 2G network, the 3G network, the 4G network and the WLAN network includes:

For WLAN hotspots, only the same site is considered for 2G indoors. When the distance between sites is less than or equal to the distance between common sites, WLAN hotspots and 2G indoors are on the same site;

For WLAN hotspots, only the same site is considered for 3G indoors. When the distance between sites is less than or equal to the distance between common sites, WLAN hotspots and 3G indoors are on the same site;

WLAN hotspots, for 2G outdoors, when the distance between stations is less than or equal to the distance between common sites, WLAN hotspots and 2G outdoors have the same site; the distance between stations is less than or equal to GSM coverage radius × K8-WLAN coverage radius, WLAN hotspots and 2G outdoors Same coverage, where K8 is a constant;

WLAN hotspots, for 3G outdoors, when the distance between stations is less than or equal to the distance between common sites, the WLAN hotspots and 3G outdoors have the same site; when the distance between stations is less than or equal to TD coverage radius × K9-WLAN coverage radius, WLAN The outdoor coverage is the same, where K9 is a constant.

Specifically, in the above-mentioned embodiments of the present invention, the method for determining the same site and same coverage cell among the 2G network, 3G network, 4G network and WLAN network includes:

When there are 3G sites at the same site, regardless of the calculation of the same coverage, a 3G cell with the smallest absolute value of the azimuth difference is selected;

When there is no 3G site with the same site, if there is a 3G cell with the same coverage, select the 3G cell with the same coverage within the range of the station distance; if there is no 3G cell with the same coverage, select the nearest cell within the distance The same direction means the cell with the same coverage; otherwise, there is no 3G cell with the same site and the same coverage.

Specifically, in the above-mentioned embodiments of the present invention, the method for determining the same site and same coverage cell among the 2G network, 3G network, 4G network and WLAN network includes:

When there are 4G sites at the same site, regardless of the calculation of the same coverage, select a 4G cell with the smallest absolute value of the azimuth difference;

When there is no 4G site with the same site, if there is a 4G cell with the same coverage, select the 4G cell with the same coverage within the range of the station distance; if there is no 4G cell with the same coverage, select the nearest cell within the distance between the stations The same direction means the cell with the same coverage; otherwise, there is no 4G cell with the same site and the same coverage.

According to the above-mentioned system, flow, and definitions and algorithms of each module in the system, the present invention exemplifies several embodiments. Specifically, 2G is distributed to LTE as shown in 4, TD is distributed to LTE as shown in Figure 5, 2G is distributed to TD as shown in Figure 6, 2G is distributed to WLAN as shown in Figure 7, and TD is distributed to WLAN as shown in Figure 8. Among them, the overall network distribution evaluation index system can guide each module.

It should be noted that the network data flow balancing system provided in the above-mentioned embodiments of the present invention is a system applying the above-mentioned network data flow balancing method, and all embodiments and beneficial effects of the above-mentioned network data flow balancing method are applicable. in the system.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (35)

1. A method for balancing network data flow, characterized in that, comprising: Obtain the offload evaluation result of the network area to be offloaded; Judging according to the distribution evaluation result that if there is a target distribution network area that can be distributed within a preset range around the network area to be distributed, obtain a distribution strategy, and distribute the traffic of the network area to be distributed to the target distribution according to the distribution strategy network area, otherwise, the traffic of the network area to be offloaded is diverted to the target offloaded network area by creating a new site. 2. The method for balancing network data traffic according to claim 1, wherein the step of obtaining the distribution evaluation result of the network area to be distributed comprises: Determine the network area to be distributed; Obtain the diversion index and/or interoperability parameter index of the network to be diverted; Obtain the site construction index, bearer index and/or terminal distribution index of the target distribution network; According to the distribution index and/or interoperability parameter index of the network to be distributed, and the site construction index, bearer index and/or terminal distribution index of the target distribution network, the distribution evaluation result of the network area to be distributed is obtained. 3. The method for balancing network data traffic according to claim 2, wherein the step of determining the network area to be distributed comprises: Determine the network area to be offloaded according to the occupation of network resources, service flow information, terminal related information, and user or service requirement information. 4. the balancing method of network data flow according to claim 3, is characterized in that, Use the following algorithm to determine the network area to be offloaded as a 2G outdoor high-traffic cell: A cell whose daily average cell traffic is higher than the threshold is a 2G outdoor high-traffic cell; or Determine the network area to be offloaded as a 2G outdoor high-load cell by the following algorithm: The cells whose daily average cell traffic is higher than the threshold, uplink PDCH multiplexing during daily average busy hours or downlink PDCH multiplexing during daily average busy hours are higher than the threshold, and whose wireless utilization rate is higher than the threshold during daily average busy hours are 2G outdoor high-load cells; or The network area to be offloaded is determined to be a 2G indoor high-traffic cell by the following algorithm: A cell whose daily average cell traffic is higher than the threshold is a 2G indoor high-traffic cell: or The network to be offloaded is determined to be a 2G indoor high-load cell by the following algorithm: The cells whose daily average cell traffic is higher than the threshold, uplink PDCH multiplexing during daily average busy hours or downlink PDCH multiplexing during daily average busy hours are higher than the threshold, and whose wireless utilization rate is higher than the threshold during daily average busy hours are 2G indoor high-load cells; or The network area to be offloaded is determined to be a TD outdoor high-traffic cell by the following algorithm: A cell whose daily average cell traffic is higher than the threshold is a TD outdoor high-traffic cell; or The network area to be offloaded is determined to be a TD outdoor high-load cell by the following algorithm: A cell whose daily average cell traffic is higher than the threshold and whose daily average busy hour cell code resource utilization is higher than the threshold is a TD outdoor high-load cell; or The network area to be offloaded is determined to be a TD indoor high-traffic cell by the following algorithm: A cell whose daily average cell traffic is higher than the threshold is a TD indoor high-traffic cell; or Determine the network area to be offloaded as a TD indoor high-load cell by the following algorithm: The cells whose daily average cell traffic is higher than the threshold and whose daily average busy hour cell code resource utilization is higher than the threshold are TD indoor high-load cells. 5. the equalization method of network data flow according to claim 2, is characterized in that, obtains the diversion index of 2G network according to following formula: X=1-(α×2G high-traffic cell ratio+β×2G high-load cell ratio); If the offload index of the 2G network is lower than the first preset threshold, the offload evaluation result of the 2G network is: there is a offload demand; Among them, X is the distribution index of 2G cells, α and β are constants, the proportion of 2G high-traffic cells is the proportion of 2G high-traffic cells in the 2G cells of the entire network, and the proportion of 2G high-load cells is the proportion of 2G high-load cells in the entire network of 2G cells. proportion of the district. 6. the equalizing method of network data flow according to claim 2, is characterized in that, obtains the diversion index of 3G network according to following formula: Y=1-(γ×3G high-traffic cell ratio+δ×3G high-load cell ratio); If the offload index of the 3G network is lower than the second preset threshold, the offload evaluation result of the 3G network is: there is a offload demand; Among them, Y is the distribution index of 3G cells, γ and δ are constants, the proportion of 3G high-traffic cells is the proportion of 3G high-traffic cells in the 3G cells of the entire network, and the proportion of 3G high-load cells is the proportion of 3G high-load cells in the entire network 3G proportion of the district. 7. the equalization method of network data flow according to claim 2, is characterized in that, obtains 2G/3G interoperation parameter index according to following formula: A=(∑Proportion of suitable cells for each type of interoperability parameter configuration)/number of interoperability parameter types; If the 2G/3G interoperability parameter index is higher than the third preset threshold, the distribution evaluation result is: conform to the configuration suggestion of the preferred 3G network; otherwise, the distribution evaluation result is: the 2G/3G network interoperability parameter configuration needs to be optimized; Among them, A is the 2G/3G interoperability parameter index; the proportion of cells with appropriate interoperability parameters refers to the proportion of cells whose configuration parameters are within a reasonable range among the formulated interoperability parameters. 8. the equalization method of network data flow according to claim 2, is characterized in that, obtains 2G/3G/4G interoperation parameter index according to following formula: B=(∑Proportion of suitable cells for each type of interoperability parameter configuration)/number of interoperability parameter types; If the 2G/3G/4G interoperability parameter index is higher than the fourth preset threshold, the distribution evaluation result is: conform to the configuration suggestion of the preferred 4G network; otherwise, the distribution evaluation result is: need to optimize 2G/3G/4G network interoperability parameter configuration; Among them, B is the 2G/3G/4G interoperability parameter index; the proportion of cells with appropriate interoperability parameter configuration refers to the proportion of cells whose configuration parameters are within a reasonable range among the formulated interoperability parameters. 9. the balancing method of network data flow according to claim 2, is characterized in that, obtains the station index of target distribution network TD according to following formula: C=α×GSM high-traffic cell has a ratio of TD stations+β×GSM high-load cell has a ratio of TD stations; If the site construction index of the target distribution network TD is higher than the fifth preset threshold, the distribution evaluation result is: use TD network distribution; otherwise, use TD station construction to perform distribution; Among them, C is the site construction index of the target distribution network TD; α and β are constants, and the proportion of GSM high-traffic cells with TD stations is the ratio of GSM high-traffic cells with the same site and coverage TD stations in the entire network of GSM high-traffic cells Proportion; the proportion of GSM high-load cells with TD stations at the same site and coverage is the proportion of GSM high-load cells with TD stations at the same site and coverage in the entire network of GSM high-load cells. 10. the equalization method of network data flow according to claim 2, is characterized in that, obtains the station index of target distribution network LTE according to following formula: D=(α×GSM high-traffic cell ratio with LTE stations+β×GSM high-load cell ratio with LTE stations)×k+(γ×TD high-traffic cell ratio with LTE stations+δ×TD high-load cell ratio with LTE The ratio of stations)×(1-k); If the site construction index of the target offload network LTE is higher than the sixth preset threshold, the offload evaluation result is: use LTE network offload; otherwise, offload through LTE station construction: Among them, D is the construction index of LTE; α, β, γ, δ, and k are constants; the proportion of GSM high-traffic cells with LTE stations is the GSM high-traffic GSM high-traffic cells with the same site and coverage LTE stations in the entire network Proportion in the cell; the ratio of LTE stations in the GSM high-load cell is the ratio of the GSM high-load cell with the same site and coverage LTE station in the GSM high-load cell in the entire network; the ratio of LTE stations in the TD high-traffic cell is the proportion of TD high-traffic cells with LTE stations at the same site and coverage in the TD high-traffic cells of the entire network; the proportion of TD high-load cells with LTE stations is the proportion of TD high-load cells with LTE stations at the same site and coverage The proportion of TD high-load cells in the entire network. 11. the balancing method of network data flow according to claim 2, is characterized in that, obtains the station construction index of target distribution network WLAN according to following formula: E=α×GSM high-traffic community has WLAN station ratio+β×GSM high-load community has WLAN station ratio)×k+(γ×TD high-traffic community has WLAN station ratio+δ×TD high-load community has WLAN station The ratio of) × (1-k); If the site construction index of the target offload network WLAN is higher than the seventh preset threshold, the offload evaluation result is: use WLAN network offload; otherwise, offload through WLAN station building; Among them, E is the station construction index of WLAN; α, β, γ, δ, and k are constants; the proportion of GSM high-traffic cells with WLAN stations is the proportion of GSM high-traffic cells with the same site address and coverage WLAN stations in the entire network GSM high-traffic Proportion in the community; the proportion of WLAN stations in GSM high-load communities is the proportion of GSM high-load communities with the same site and coverage WLAN stations in the entire network; the proportion of TD high-traffic communities with WLAN stations is the proportion of TD high-traffic cells with the same site and coverage WLAN stations in the entire network TD high-traffic cells; the proportion of TD high-load cells with WLAN stations is the proportion of TD high-load cells with the same site and coverage WLAN stations The proportion of TD high-load cells in the entire network. 12. the equalization method of network data flow according to claim 2, is characterized in that, obtains the bearing index of target distribution network 3G network according to following formula: F=Number of cells with high TD code resource busy-idle ratio/Number of TD cells with the same site and coverage of GSM high traffic; If the bearer index of the 3G network of the target offload network is higher than the eighth preset threshold, the offload evaluation result is that the 3G network bears better; otherwise, the offload evaluation result is that the 3G network is used for offload; Among them, F is the bearing index of the 3G network of the target distribution network; code resource busy-idle rate=(m×uplink occupied BRU number when busy+n×downlink occupied BRU number when busy)/[K×(m×uplink all available BRU numbers +n×number of all available downlink BRUs)], m and n are the uplink focus factor and downlink focus factor respectively, K is the ratio of the number of channels that can be carried by the system to the number of available channels in the system. 13. The balancing method of network data flow according to claim 2, is characterized in that, obtains the bearing index of target distribution network 4G network according to the following formula: G = Number of cells with high LTE wireless resource utilization in the same site and coverage/Number of LTE cells with the same site and coverage in GSM and TD high traffic cells; If the bearer index of the 4G network of the target offload network is higher than the ninth preset threshold, the offload assessment result is that the 4G network bears better; otherwise, the offload assessment result is that the 4G network offload is used; Among them, G is the bearer index of the target offload network 4G network; the number of cells with high LTE wireless resource utilization rate in the same site and coverage is the LTE cell with the same site and coverage, and the wireless resource utilization rate is greater than or equal to the preset utilization rate The number of LTE cells with the same site and coverage in GSM and TD high-traffic cells is the number of LTE cells with the same site and coverage in GSM high-traffic cells plus the number of LTE cells with the same site and coverage in TD high-traffic cells Reduce the number of de-overlapped cells. 14. the balancing method of network data flow according to claim 2, is characterized in that, obtains the carrying index of target distribution network WLAN network according to following formula: H=1-The ratio of idle hotspots of WLAN at the same site and coverage: If the bearer index of the target offload network WLAN network is higher than the tenth preset threshold, the offload evaluation result is that the WLAN network bears better; otherwise, the offload evaluation result is that the WLAN network is used for offload; Among them, H is the bearing index of the target distribution network WLAN network; WLAN idle hotspots are WLAN networks whose daily average traffic per node is less than the preset traffic value and the daily average number of users is less than the preset user value. 15. the equalization method of network data flow according to claim 2, is characterized in that, obtains the terminal shunt index of target shunt network 3G network according to following formula: M = proportion of TD terminals in the entire network × proportion of 3G network used by TD terminals; If the terminal distribution index of the target distribution network 3G network is higher than the eleventh preset threshold, the distribution evaluation result is that the TD terminal distribution basis is better; otherwise, the distribution evaluation result is that the TD terminal distribution is used; Among them, M is the terminal distribution index of the target distribution network 3G network; the proportion of TD terminals in the entire network is the number of TD terminals/the number of terminals in the entire network; the proportion of TD terminals using 3G networks is the number of TD terminals in the 3G network/number of TD terminals. 16. the method for equalizing network data traffic according to claim 2, is characterized in that, obtains the terminal shunt index of target shunt network 4G network according to following formula: N = proportion of LTE terminals in the entire network × proportion of LTE terminals using 4G networks; If the terminal distribution index of the target distribution network 4G network is higher than the twelfth preset threshold, the distribution evaluation result is that the distribution basis of LTE terminals is better; otherwise, the distribution evaluation result is that LTE terminals are used for distribution; Among them, N is the terminal distribution index of the target distribution network 4G network; the proportion of LTE terminals in the entire network is the number of LTE terminals/the number of terminals in the entire network; the proportion of LTE terminals using 4G networks is the number of LTE terminals in the 4G network/number of LTE terminals. 17. The method for balancing network data traffic according to claim 1, characterized in that, according to the distribution evaluation result, it is judged that if there is a target distribution network area that can be distributed within a preset range around the network area to be distributed Steps include: If the distribution evaluation result indicates that the network to be distributed needs to be distributed, a target distribution network is determined within a preset range around the area of the network to be distributed. 18. The method for equalizing network data traffic according to claim 17, wherein the step of determining that the target distribution network is a 3G network comprises: Determine the target distribution network as the 3G target distribution cell in the 3G network by the following algorithm: Among the 3G network cells whose cell network type is 3G network and have GSM high-value cells with the same site and coverage, the 3G network cells whose 3G traffic residence ratio is less than or equal to the threshold are 3G target diversion cells; Among them, the calculation method of traffic residence ratio is as follows: When the TD cell is GSM with the same site and coverage, the resident ratio of 3G traffic at the same site and the same coverage = the cell traffic of the TD cell in the area of the same site and the same coverage/(the cell traffic of the TD cell + the 2G traffic of the same site and the same coverage cell TD terminal traffic); or The calculation method of traffic residence ratio is as follows: When the TD cell satisfies the same site and coverage of GSM, the resident ratio of TD traffic at the same site and the same coverage = the cell traffic of the TD cell in the area of the same site and the same coverage / (the cell traffic of the TD cell + the same site and the same coverage cell traffic of 2G cell). 19. The method for balancing network data traffic according to claim 16, wherein the step of determining that the target distribution network is a 4G network comprises: Determine the target offload network as the 4G target offload cell in the 4G network by the following algorithm: The network type of the cell is 4G network, and there are LTE network cells with the same site and coverage of GSM or TD (or high-value cells with the same site and coverage of GSM or TD), the proportion of LTE traffic resident is less than or equal to the threshold, and The cell whose LTE radio resource utilization rate is less than the threshold is the target offload cell; Among them, the calculation method of traffic residence ratio is as follows: LTE traffic resident ratio = daily average cell traffic of LTE cell/(average daily cell traffic of LTE + LTE terminal traffic of GSM with the same site and same coverage + LTE terminal traffic of TD with same site and same coverage); or The calculation method of traffic residence ratio is as follows: The proportion of traffic in an LTE cell = daily average cell traffic in an LTE cell/(daily average LTE traffic + daily average GSM traffic on the same site and coverage + average daily TD traffic on the same site and coverage). 20. The method for equalizing network data traffic according to claim 18 or 19, wherein, for the target distribution cell of the target distribution network, the target distribution cell is determined to be a user promotion cell by the following method: The number of cell terminals is less than or equal to the first value, and the traffic of the cell terminals is less than or equal to the second value. 21. The method for balancing network data traffic according to claim 1, wherein the step of diverting the traffic of the network area to be diverted to the target diverted network region according to the diversion strategy comprises: Distribute the traffic in the network area to be distributed to the target distribution network area for distribution by adjusting the interoperability parameters; and/or Distribute the traffic in the network area to be distributed to the target distribution network area through user or service promotion. 22. The method for balancing network data traffic according to claim 1, wherein: If the capacity of the network to be offloaded or the target offloaded network can be expanded, the capacity of the network is expanded. 23. The equalization method of network data flow according to claim 22, it is characterized in that, when the network to be distributed or the target distribution network is a 3G network, the 3G cell is evaluated by the following algorithm: 3G cells whose cell code resource utilization rate is greater than the threshold, PS domain RAB congestion rate is greater than the threshold, and the number of days of cell congestion within the statistical time range is greater than the threshold are 3G cells to be expanded; Among them, the resource utilization rate of the cell code is equal to (the number of BRUs occupied by the uplink + the number of BRUs occupied by the downlink)/(the number of configured uplink BRUs + the number of configured downlink BRUs); the PS domain RAB congestion rate is equal to the PS domain RAB congestion times/RAB establishment number of requests; or The 3G cell is evaluated by the following algorithm: When the code resource busy-idle rate of the mixed carrier frequency of the 3G cell is greater than the threshold or the code resource busy-idle rate of the HSUPA carrier frequency of the 3G cell is greater than the threshold or the code resource busy-idle rate of the HSUPA carrier frequency of the 3G cell is greater than the threshold and the uplink DPCH channel BRU If the bearer efficiency is greater than the threshold, the 3G cell is a 3G cell to be expanded. 24. The method for equalizing network data traffic according to claim 22, wherein, when the network to be distributed or the target distribution network is a 4G network, the 4G cell is evaluated by the following algorithm: During the statistical period, the average number of RRC connected users when the local network is busy is greater than the number of purchased user licenses, and the 4G cell is a 4G cell to be expanded; or The 4G cell is evaluated by the following algorithm: During the statistical period, the wireless resource utilization rate of the LTE network is greater than the utilization threshold during busy hours, and the average number of active RRC connected users is greater than the user capacity threshold during busy hours, and the downlink traffic is greater than the downlink traffic threshold when the cell is busy or the uplink traffic is greater than the uplink traffic when the cell is busy Traffic threshold, the 4G cell is a 4G cell to be expanded. 25. The method for equalizing network data traffic according to claim 1, wherein if the network to be offloaded or the target offloaded network is a weak coverage, poor quality or interference cell, the network is optimized. 26. The method for balancing network data traffic according to claim 4, wherein the step of creating a new site comprises: Create a new 3G site through the following algorithm: During the statistical period, if the GSM cell is a high-value cell, there is no 3G network with the same site and coverage, the number of TD terminals is greater than or equal to the threshold, and the traffic of TD terminals is greater than or equal to the threshold, a new 3G site is newly built; For TD terminals in high-value communities on the network, the time granularity is days, and the daily average number of TD terminals within the statistical time range; for TD terminal traffic in high-value communities on the 2G network, the time granularity is days, and the daily average TD terminals within the statistical time range The traffic is greater than or equal to the threshold; Or, use the following algorithm to create a new 3G site: During the statistical period, if the GSM cell is a high-value cell and there is no 2G network high-value site with the same site and coverage of the 3G network, a new 3G site will be built. 27. The method for balancing network data traffic according to claim 4, wherein the step of creating a new site comprises: Use the following algorithm to create a new WLAN site: If the 2G network cell or 3G network cell to be offloaded is a high-value cell, there is no WLAN with the same site and coverage, the number of WLAN terminals is greater than or equal to the threshold, and the traffic of WLAN terminals is greater than or equal to the threshold, a new 2G or 3G network high-value site is created. WLAN site; wherein, the number of WLAN terminals is the daily average WLAN terminal quantity residing in the cell within the statistical time range, and the time granularity is days; WLAN terminal traffic=the daily average WLAN terminal service flow of the residential cell within the statistical time range, and the time granularity is sky; Alternatively, create a new WLAN site using the following algorithm: If the 2G network cell or 3G network cell to be offloaded is a high-value cell, and there is no 2G network or 3G network high-value site with the same site address and coverage of WLAN, a new WLAN site is built. 28. The method for balancing network data traffic according to claim 4, wherein the step of creating a new site comprises: Create a new 4G site through the following algorithm: If the 2G network cell or 3G network cell to be offloaded is a high-value cell, does not have the same site and same coverage LTE, the number of LTE terminals is greater than or equal to the threshold, and the traffic of LTE terminals is greater than or equal to the threshold, then a new 2G or 3G network high-value site is created. 4G site; if the 2G network cell and the 3G network cell are obtained at the same site, remove the 3G site at the 2G site; where, the number of LTE terminals = the daily average number of LTE terminals residing in the cell within the statistical time range, and the time granularity is day ;LTE terminal flow = the daily average LTE terminal service flow in the residential cell within the statistical time range, and the time granularity is days; Or create a new 4G site through the following algorithm: If the 2G network cell or 3G network cell to be offloaded is a high-value cell, and there is no 2G network or 3G network high-value site with the same site and LTE coverage, a new 4G site will be built; if the obtained 2G network cell and 3G network cell share the site , remove the 3G site with 2G co-site. 29. The method for balancing network data traffic according to claim 9, 10, 11, 12, 13, 14, 18, 19, 26, 27 or 28, characterized in that 2G network, 3G network, 4G network and WLAN network The mapping relationship between the same site and coverage includes: For 2G indoors, only the same site is considered for 3G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 2G indoor and 3G indoor are on the same site; For 2G indoors, only the same site is considered for WLAN hotspots, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 2G indoor and WLAN hotspots are on the same site; 2G outdoor, for 3G outdoor, when the station distance is less than or equal to the common site distance, 2G outdoor and 3G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K1, 2G outdoor Same coverage as 3G outdoor, where K1 is a constant; 2G outdoor, for WLAN hotspots, when the station distance is less than or the same site as the station distance, the 2G outdoor and WLAN hotspots are on the same site; when the station distance is less than or equal to the coverage radius of GSM × K2-WLAN Hotspots are the same as coverage, where K2 is a constant; For 2G indoors, only the same site is considered for 4G indoors. When the distance between stations is less than or equal to the distance between common sites, 2G indoors and 4G indoors are on the same site; 2G outdoor, for 4G outdoor, when the station distance is less than or equal to the common site station distance, 2G indoor and 4G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K3, 2G outdoor Same coverage for 4G outdoors, where K3 is a constant. 30. The method for balancing network data traffic according to claim 29, wherein the mapping relationship between the 2G network, the 3G network, the 4G network and the WLAN network includes: For 3G indoors, only the same site is considered for 2G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 3G indoor and 2G indoor are on the same site; 3G outdoor, for 2G outdoor, when the station distance is less than or equal to the common site station distance, the 3G indoor and 2G outdoor are on the same site; when the station distance is less than or equal to (2G coverage radius + 3G coverage radius) × K4, 3G indoor Same coverage as 2G outdoor, where K4 is a constant; For 3G indoors, only the same site is considered for WLAN hotspots, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 3G indoor and WLAN hotspots are on the same site; 3G outdoor, for WLAN hotspots, when the distance between stations is less than or equal to the distance between co-site stations, the 3G outdoor and WLAN hotspots are on the same site; WLAN hotspots have the same coverage, where K5 is a constant; For 3G indoors, only the same site is considered for 4G indoors, and when the inter-site distance is less than or equal to the co-site inter-site distance, the 3G indoor and 4G indoor are on the same site; 3G outdoor, for 4G outdoor, when the station distance is less than or equal to the common site station distance, the 3G outdoor and 4G outdoor are on the same site; when the station distance is <= (LTE coverage radius + TD coverage radius) × K6, 3G outdoor Same coverage as 4G outdoor, where K6 is a constant. 31. The method for balancing network data traffic according to claim 30, wherein the mapping relationship between the 2G network, the 3G network, the 4G network and the WLAN network includes: For 4G indoors, only the same site is considered for 3G indoors, and when the inter-site distance is less than or equal to the inter-site inter-site distance, the 4G indoor and 3G indoor are on the same site; 4G outdoor, for 3G outdoor, when the station distance is less than or equal to the common site distance, the 4G outdoor and 3G outdoor are on the same site; when the station distance is less than or equal to (LTE coverage radius + TD coverage radius) × K7, 4G Outdoor coverage is the same as 3G outdoor coverage, where K7 is a constant. 32. The method for balancing network data traffic according to claim 31, wherein the mapping relationship between the 2G network, the 3G network, the 4G network and the WLAN network includes: For WLAN hotspots, only the same site is considered for 2G indoors. When the distance between sites is less than or equal to the distance between common sites, WLAN hotspots and 2G indoors are on the same site; For WLAN hotspots, only the same site is considered for 3G indoors. When the distance between sites is less than or equal to the distance between common sites, WLAN hotspots and 3G indoors are on the same site; WLAN hotspots, for 2G outdoors, when the distance between stations is less than or equal to the distance between common sites, WLAN hotspots and 2G outdoors have the same site; the distance between stations is less than or equal to GSM coverage radius × K8-WLAN coverage radius, WLAN hotspots and 2G outdoors Same coverage, where K8 is a constant; WLAN hotspots, for 3G outdoors, when the distance between stations is less than or equal to the distance between common sites, the WLAN hotspots and 3G outdoors have the same site; when the distance between stations is less than or equal to TD coverage radius × K9-WLAN coverage radius, WLAN The outdoor coverage is the same, where K9 is a constant. 33. The method for balancing network data traffic according to claim 32, characterized in that, the determination method of the same site and same coverage cell among 2G network, 3G network, 4G network and WLAN network comprises: When there are 3G sites at the same site, regardless of the calculation of the same coverage, a 3G cell with the smallest absolute value of the azimuth difference is selected; When there is no 3G site with the same site, if there is a 3G cell with the same coverage, select the 3G cell with the same coverage within the range of the station distance; if there is no 3G cell with the same coverage, select the nearest cell within the distance The same direction means the cell with the same coverage; otherwise, there is no 3G cell with the same site and the same coverage. 34. The method for balancing network data traffic according to claim 33, wherein the method for determining the same site and same coverage cell among 2G network, 3G network, 4G network and WLAN network comprises: When there are 4G sites at the same site, regardless of the calculation of the same coverage, select a 4G cell with the smallest absolute value of the azimuth difference; When there is no 4G site with the same site, if there is a 4G cell with the same coverage, select the 4G cell with the same coverage within the range of the station distance; if there is no 4G cell with the same coverage, select the nearest cell within the distance between the stations The same direction means the cell with the same coverage; otherwise, there is no 4G cell with the same site and the same coverage. 35. A system for balancing network data traffic, comprising: An acquisition module, configured to acquire an offload evaluation result of a network area to be offloaded; An offloading module, configured to judge according to the offloading evaluation result that if there is a target offloading network area that can be offloaded within a preset range around the network area to be offloaded, obtain an offloading strategy, and divide the network area to be offloaded according to the offloading strategy The traffic is distributed to the target distribution network area; otherwise, the traffic of the network area to be distributed is distributed to the target distribution network area by creating a new site.